CINXE.COM

File:United States patent 1,394,450, "Bread-Toaster", 1921.pdf - Wikipedia

<!DOCTYPE html> <html class="client-nojs vector-feature-language-in-header-enabled vector-feature-language-in-main-page-header-disabled vector-feature-sticky-header-disabled vector-feature-page-tools-pinned-disabled vector-feature-toc-pinned-clientpref-1 vector-feature-main-menu-pinned-disabled vector-feature-limited-width-clientpref-1 vector-feature-limited-width-content-enabled vector-feature-custom-font-size-clientpref--excluded vector-feature-appearance-pinned-clientpref-1 vector-feature-night-mode-enabled skin-theme-clientpref-day vector-toc-not-available" lang="en" dir="ltr"> <head> <meta charset="UTF-8"> <title>File:United States patent 1,394,450, "Bread-Toaster", 1921.pdf - Wikipedia</title> <script>(function(){var className="client-js vector-feature-language-in-header-enabled vector-feature-language-in-main-page-header-disabled vector-feature-sticky-header-disabled vector-feature-page-tools-pinned-disabled vector-feature-toc-pinned-clientpref-1 vector-feature-main-menu-pinned-disabled vector-feature-limited-width-clientpref-1 vector-feature-limited-width-content-enabled vector-feature-custom-font-size-clientpref--excluded vector-feature-appearance-pinned-clientpref-1 vector-feature-night-mode-enabled skin-theme-clientpref-day vector-toc-not-available";var cookie=document.cookie.match(/(?:^|; )enwikimwclientpreferences=([^;]+)/);if(cookie){cookie[1].split('%2C').forEach(function(pref){className=className.replace(new RegExp('(^| )'+pref.replace(/-clientpref-\w+$|[^\w-]+/g,'')+'-clientpref-\\w+( |$)'),'$1'+pref+'$2');});}document.documentElement.className=className;}());RLCONF={"wgBreakFrames":false,"wgSeparatorTransformTable":["",""],"wgDigitTransformTable":["",""], "wgDefaultDateFormat":"dmy","wgMonthNames":["","January","February","March","April","May","June","July","August","September","October","November","December"],"wgRequestId":"9899acfb-dd24-42e3-9450-eb031a9f4741","wgCanonicalNamespace":"File","wgCanonicalSpecialPageName":false,"wgNamespaceNumber":6,"wgPageName":"File:United_States_patent_1,394,450,_\"Bread-Toaster\",_1921.pdf","wgTitle":"United States patent 1,394,450, \"Bread-Toaster\", 1921.pdf","wgCurRevisionId":0,"wgRevisionId":0,"wgArticleId":0,"wgIsArticle":true,"wgIsRedirect":false,"wgAction":"view","wgUserName":null,"wgUserGroups":["*"],"wgCategories":[],"wgPageViewLanguage":"en","wgPageContentLanguage":"en","wgPageContentModel":"wikitext","wgRelevantPageName":"File:United_States_patent_1,394,450,_\"Bread-Toaster\",_1921.pdf","wgRelevantArticleId":0,"wgIsProbablyEditable":false,"wgRelevantPageIsProbablyEditable":false,"wgRestrictionCreate":[],"wgNoticeProject":"wikipedia","wgCiteReferencePreviewsActive":false, "wgFlaggedRevsParams":{"tags":{"status":{"levels":1}}},"wgMediaViewerOnClick":true,"wgMediaViewerEnabledByDefault":true,"wgPopupsFlags":0,"wgVisualEditor":{"pageLanguageCode":"en","pageLanguageDir":"ltr","pageVariantFallbacks":"en"},"wgMFDisplayWikibaseDescriptions":{"search":true,"watchlist":true,"tagline":false,"nearby":true},"wgWMESchemaEditAttemptStepOversample":false,"wgWMEPageLength":0,"wgFileWarning":{"messages":{"main":"pdf-file-page-warning","header":"pdf-file-page-warning-header","info":"pdf-file-page-warning-info","footer":"pdf-file-page-warning-footer"},"link":"//www.mediawiki.org/wiki/Special:MyLanguage/Help:Security/PDF_files","module":"pdfhandler.messages"},"wgRelatedArticlesCompat":[],"wgCentralAuthMobileDomain":false,"wgEditSubmitButtonLabelPublish":true,"wgULSPosition":"interlanguage","wgULSisCompactLinksEnabled":false,"wgVector2022LanguageInHeader":true,"wgULSisLanguageSelectorEmpty":true,"wgCheckUserClientHintsHeadersJsApi":["brands","architecture","bitness", "fullVersionList","mobile","model","platform","platformVersion"],"GEHomepageSuggestedEditsEnableTopics":true,"wgGETopicsMatchModeEnabled":false,"wgGEStructuredTaskRejectionReasonTextInputEnabled":false,"wgGELevelingUpEnabledForUser":false};RLSTATE={"ext.globalCssJs.user.styles":"ready","site.styles":"ready","user.styles":"ready","ext.globalCssJs.user":"ready","user":"ready","user.options":"loading","mediawiki.interface.helpers.styles":"ready","mediawiki.action.view.filepage":"ready","skins.vector.search.codex.styles":"ready","skins.vector.styles":"ready","skins.vector.icons":"ready","filepage":"ready","ext.wikimediamessages.styles":"ready","ext.visualEditor.desktopArticleTarget.noscript":"ready","ext.uls.interlanguage":"ready","ext.wikimediaBadges":"ready"};RLPAGEMODULES=["mediawiki.page.image.pagination","mediawiki.page.media","pdfhandler.messages","mediawiki.filewarning","mediawiki.action.view.metadata","site","mediawiki.page.ready","skins.vector.js","ext.centralNotice.geoIP", "ext.centralNotice.startUp","ext.gadget.ReferenceTooltips","ext.gadget.switcher","ext.urlShortener.toolbar","ext.centralauth.centralautologin","mmv.bootstrap","ext.popups","ext.visualEditor.desktopArticleTarget.init","ext.visualEditor.targetLoader","ext.echo.centralauth","ext.eventLogging","ext.wikimediaEvents","ext.navigationTiming","ext.uls.interface","ext.cx.eventlogging.campaigns","ext.checkUser.clientHints"];</script> <script>(RLQ=window.RLQ||[]).push(function(){mw.loader.impl(function(){return["user.options@12s5i",function($,jQuery,require,module){mw.user.tokens.set({"patrolToken":"+\\","watchToken":"+\\","csrfToken":"+\\"}); }];});});</script> <link rel="stylesheet" href="/w/load.php?lang=en&amp;modules=ext.uls.interlanguage%7Cext.visualEditor.desktopArticleTarget.noscript%7Cext.wikimediaBadges%7Cext.wikimediamessages.styles%7Cfilepage%7Cmediawiki.action.view.filepage%7Cmediawiki.interface.helpers.styles%7Cskins.vector.icons%2Cstyles%7Cskins.vector.search.codex.styles&amp;only=styles&amp;skin=vector-2022"> <script async="" src="/w/load.php?lang=en&amp;modules=startup&amp;only=scripts&amp;raw=1&amp;skin=vector-2022"></script> <link rel="stylesheet" href="https://commons.wikimedia.org/w/index.php?title=MediaWiki:Filepage.css&amp;action=raw&amp;ctype=text/css"> <meta name="ResourceLoaderDynamicStyles" content=""> <link rel="stylesheet" href="/w/load.php?lang=en&amp;modules=site.styles&amp;only=styles&amp;skin=vector-2022"> <meta name="generator" content="MediaWiki 1.44.0-wmf.4"> <meta name="referrer" content="origin"> <meta name="referrer" content="origin-when-cross-origin"> <meta name="robots" content="max-image-preview:standard"> <meta name="format-detection" content="telephone=no"> <meta property="og:image" content="https://upload.wikimedia.org/wikipedia/commons/thumb/2/28/United_States_patent_1%2C394%2C450%2C_%22Bread-Toaster%22%2C_1921.pdf/page1-1200px-United_States_patent_1%2C394%2C450%2C_%22Bread-Toaster%22%2C_1921.pdf.jpg"> <meta property="og:image:width" content="1200"> <meta property="og:image:height" content="1553"> <meta property="og:image" content="https://upload.wikimedia.org/wikipedia/commons/thumb/2/28/United_States_patent_1%2C394%2C450%2C_%22Bread-Toaster%22%2C_1921.pdf/page1-800px-United_States_patent_1%2C394%2C450%2C_%22Bread-Toaster%22%2C_1921.pdf.jpg"> <meta property="og:image:width" content="800"> <meta property="og:image:height" content="1035"> <meta property="og:image" content="https://upload.wikimedia.org/wikipedia/commons/thumb/2/28/United_States_patent_1%2C394%2C450%2C_%22Bread-Toaster%22%2C_1921.pdf/page1-640px-United_States_patent_1%2C394%2C450%2C_%22Bread-Toaster%22%2C_1921.pdf.jpg"> <meta property="og:image:width" content="640"> <meta property="og:image:height" content="828"> <meta name="viewport" content="width=1120"> <meta property="og:title" content="File:United States patent 1,394,450, &quot;Bread-Toaster&quot;, 1921.pdf - Wikipedia"> <meta property="og:type" content="website"> <link rel="preconnect" href="//upload.wikimedia.org"> <link rel="preconnect" href="//upload.wikimedia.org"> <link rel="alternate" media="only screen and (max-width: 640px)" href="//en.m.wikipedia.org/wiki/File:United_States_patent_1,394,450,_%22Bread-Toaster%22,_1921.pdf"> <link rel="apple-touch-icon" href="/static/apple-touch/wikipedia.png"> <link rel="icon" href="/static/favicon/wikipedia.ico"> <link rel="search" type="application/opensearchdescription+xml" href="/w/rest.php/v1/search" title="Wikipedia (en)"> <link rel="EditURI" type="application/rsd+xml" href="//en.wikipedia.org/w/api.php?action=rsd"> <link rel="canonical" href="https://commons.wikimedia.org/wiki/File:United_States_patent_1,394,450,_%22Bread-Toaster%22,_1921.pdf"> <link rel="license" href="https://creativecommons.org/licenses/by-sa/4.0/deed.en"> <link rel="alternate" type="application/atom+xml" title="Wikipedia Atom feed" href="/w/index.php?title=Special:RecentChanges&amp;feed=atom"> <link rel="dns-prefetch" href="//meta.wikimedia.org" /> <link rel="dns-prefetch" href="//login.wikimedia.org"> </head> <body class="skin--responsive skin-vector skin-vector-search-vue mediawiki ltr sitedir-ltr mw-hide-empty-elt ns-6 ns-subject page-File_United_States_patent_1_394_450_Bread-Toaster_1921_pdf rootpage-File_United_States_patent_1_394_450_Bread-Toaster_1921_pdf skin-vector-2022 action-view"><a class="mw-jump-link" href="#bodyContent">Jump to content</a> <div class="vector-header-container"> <header class="vector-header mw-header"> <div class="vector-header-start"> <nav class="vector-main-menu-landmark" aria-label="Site"> <div id="vector-main-menu-dropdown" class="vector-dropdown vector-main-menu-dropdown vector-button-flush-left vector-button-flush-right" > <input type="checkbox" id="vector-main-menu-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-main-menu-dropdown" class="vector-dropdown-checkbox " aria-label="Main menu" > <label id="vector-main-menu-dropdown-label" for="vector-main-menu-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-menu mw-ui-icon-wikimedia-menu"></span> <span class="vector-dropdown-label-text">Main menu</span> </label> <div class="vector-dropdown-content"> <div id="vector-main-menu-unpinned-container" class="vector-unpinned-container"> <div id="vector-main-menu" class="vector-main-menu vector-pinnable-element"> <div class="vector-pinnable-header vector-main-menu-pinnable-header vector-pinnable-header-unpinned" data-feature-name="main-menu-pinned" data-pinnable-element-id="vector-main-menu" data-pinned-container-id="vector-main-menu-pinned-container" data-unpinned-container-id="vector-main-menu-unpinned-container" > <div class="vector-pinnable-header-label">Main menu</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-main-menu.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-main-menu.unpin">hide</button> </div> <div id="p-navigation" class="vector-menu mw-portlet mw-portlet-navigation" > <div class="vector-menu-heading"> Navigation </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-mainpage-description" class="mw-list-item"><a href="/wiki/Main_Page" title="Visit the main page [z]" accesskey="z"><span>Main page</span></a></li><li id="n-contents" class="mw-list-item"><a href="/wiki/Wikipedia:Contents" title="Guides to browsing Wikipedia"><span>Contents</span></a></li><li id="n-currentevents" class="mw-list-item"><a href="/wiki/Portal:Current_events" title="Articles related to current events"><span>Current events</span></a></li><li id="n-randompage" class="mw-list-item"><a href="/wiki/Special:Random" title="Visit a randomly selected article [x]" accesskey="x"><span>Random article</span></a></li><li id="n-aboutsite" class="mw-list-item"><a href="/wiki/Wikipedia:About" title="Learn about Wikipedia and how it works"><span>About Wikipedia</span></a></li><li id="n-contactpage" class="mw-list-item"><a href="//en.wikipedia.org/wiki/Wikipedia:Contact_us" title="How to contact Wikipedia"><span>Contact us</span></a></li> </ul> </div> </div> <div id="p-interaction" class="vector-menu mw-portlet mw-portlet-interaction" > <div class="vector-menu-heading"> Contribute </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-help" class="mw-list-item"><a href="/wiki/Help:Contents" title="Guidance on how to use and edit Wikipedia"><span>Help</span></a></li><li id="n-introduction" class="mw-list-item"><a href="/wiki/Help:Introduction" title="Learn how to edit Wikipedia"><span>Learn to edit</span></a></li><li id="n-portal" class="mw-list-item"><a href="/wiki/Wikipedia:Community_portal" title="The hub for editors"><span>Community portal</span></a></li><li id="n-recentchanges" class="mw-list-item"><a href="/wiki/Special:RecentChanges" title="A list of recent changes to Wikipedia [r]" accesskey="r"><span>Recent changes</span></a></li><li id="n-upload" class="mw-list-item"><a href="/wiki/Wikipedia:File_upload_wizard" title="Add images or other media for use on Wikipedia"><span>Upload file</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> <a href="/wiki/Main_Page" class="mw-logo"> <img class="mw-logo-icon" src="/static/images/icons/wikipedia.png" alt="" aria-hidden="true" height="50" width="50"> <span class="mw-logo-container skin-invert"> <img class="mw-logo-wordmark" alt="Wikipedia" src="/static/images/mobile/copyright/wikipedia-wordmark-en.svg" style="width: 7.5em; height: 1.125em;"> <img class="mw-logo-tagline" alt="The Free Encyclopedia" src="/static/images/mobile/copyright/wikipedia-tagline-en.svg" width="117" height="13" style="width: 7.3125em; height: 0.8125em;"> </span> </a> </div> <div class="vector-header-end"> <div id="p-search" role="search" class="vector-search-box-vue vector-search-box-collapses vector-search-box-show-thumbnail vector-search-box-auto-expand-width vector-search-box"> <a href="/wiki/Special:Search" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only search-toggle" title="Search Wikipedia [f]" accesskey="f"><span class="vector-icon mw-ui-icon-search mw-ui-icon-wikimedia-search"></span> <span>Search</span> </a> <div class="vector-typeahead-search-container"> <div class="cdx-typeahead-search cdx-typeahead-search--show-thumbnail cdx-typeahead-search--auto-expand-width"> <form action="/w/index.php" id="searchform" class="cdx-search-input cdx-search-input--has-end-button"> <div id="simpleSearch" class="cdx-search-input__input-wrapper" data-search-loc="header-moved"> <div class="cdx-text-input cdx-text-input--has-start-icon"> <input class="cdx-text-input__input" type="search" name="search" placeholder="Search Wikipedia" aria-label="Search Wikipedia" autocapitalize="sentences" title="Search Wikipedia [f]" accesskey="f" id="searchInput" > <span class="cdx-text-input__icon cdx-text-input__start-icon"></span> </div> <input type="hidden" name="title" value="Special:Search"> </div> <button class="cdx-button cdx-search-input__end-button">Search</button> </form> </div> </div> </div> <nav class="vector-user-links vector-user-links-wide" aria-label="Personal tools"> <div class="vector-user-links-main"> <div id="p-vector-user-menu-preferences" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-userpage" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <nav class="vector-appearance-landmark" aria-label="Appearance"> <div id="vector-appearance-dropdown" class="vector-dropdown " title="Change the appearance of the page&#039;s font size, width, and color" > <input type="checkbox" id="vector-appearance-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-appearance-dropdown" class="vector-dropdown-checkbox " aria-label="Appearance" > <label id="vector-appearance-dropdown-label" for="vector-appearance-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-appearance mw-ui-icon-wikimedia-appearance"></span> <span class="vector-dropdown-label-text">Appearance</span> </label> <div class="vector-dropdown-content"> <div id="vector-appearance-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <div id="p-vector-user-menu-notifications" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-overflow" class="vector-menu mw-portlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="https://donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&amp;utm_medium=sidebar&amp;utm_campaign=C13_en.wikipedia.org&amp;uselang=en" class=""><span>Donate</span></a> </li> <li id="pt-createaccount-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Special:CreateAccount&amp;returnto=File%3AUnited+States+patent+1%2C394%2C450%2C+%22Bread-Toaster%22%2C+1921.pdf" title="You are encouraged to create an account and log in; however, it is not mandatory" class=""><span>Create account</span></a> </li> <li id="pt-login-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Special:UserLogin&amp;returnto=File%3AUnited+States+patent+1%2C394%2C450%2C+%22Bread-Toaster%22%2C+1921.pdf" title="You&#039;re encouraged to log in; however, it&#039;s not mandatory. [o]" accesskey="o" class=""><span>Log in</span></a> </li> </ul> </div> </div> </div> <div id="vector-user-links-dropdown" class="vector-dropdown vector-user-menu vector-button-flush-right vector-user-menu-logged-out" title="Log in and more options" > <input type="checkbox" id="vector-user-links-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-user-links-dropdown" class="vector-dropdown-checkbox " aria-label="Personal tools" > <label id="vector-user-links-dropdown-label" for="vector-user-links-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-ellipsis mw-ui-icon-wikimedia-ellipsis"></span> <span class="vector-dropdown-label-text">Personal tools</span> </label> <div class="vector-dropdown-content"> <div id="p-personal" class="vector-menu mw-portlet mw-portlet-personal user-links-collapsible-item" title="User menu" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport" class="user-links-collapsible-item mw-list-item"><a href="https://donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&amp;utm_medium=sidebar&amp;utm_campaign=C13_en.wikipedia.org&amp;uselang=en"><span>Donate</span></a></li><li id="pt-createaccount" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Special:CreateAccount&amp;returnto=File%3AUnited+States+patent+1%2C394%2C450%2C+%22Bread-Toaster%22%2C+1921.pdf" title="You are encouraged to create an account and log in; however, it is not mandatory"><span class="vector-icon mw-ui-icon-userAdd mw-ui-icon-wikimedia-userAdd"></span> <span>Create account</span></a></li><li id="pt-login" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Special:UserLogin&amp;returnto=File%3AUnited+States+patent+1%2C394%2C450%2C+%22Bread-Toaster%22%2C+1921.pdf" title="You&#039;re encouraged to log in; however, it&#039;s not mandatory. [o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>Log in</span></a></li> </ul> </div> </div> <div id="p-user-menu-anon-editor" class="vector-menu mw-portlet mw-portlet-user-menu-anon-editor" > <div class="vector-menu-heading"> Pages for logged out editors <a href="/wiki/Help:Introduction" aria-label="Learn more about editing"><span>learn more</span></a> </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-anoncontribs" class="mw-list-item"><a href="/wiki/Special:MyContributions" title="A list of edits made from this IP address [y]" accesskey="y"><span>Contributions</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/Special:MyTalk" title="Discussion about edits from this IP address [n]" accesskey="n"><span>Talk</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"><!-- CentralNotice --></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="Site"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <h1 id="firstHeading" class="firstHeading mw-first-heading">File:United States patent 1,394,450, "Bread-Toaster", 1921.pdf</h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang mw-portlet-lang-icon-only" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector-empty" aria-label="This article exist only in this language. Add the article for other languages" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only mw-portlet-lang-heading-empty" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language mw-ui-icon-wikimedia-language"></span> <span class="vector-dropdown-label-text">Add languages</span> </label> <div class="vector-dropdown-content"> <div class="mw-portlet-empty-language-selector-body"> Page contents not supported in other languages. </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Namespaces"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-image" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/File:United_States_patent_1,394,450,_%22Bread-Toaster%22,_1921.pdf" title="View the file page [c]" accesskey="c"><span>File</span></a></li><li id="ca-talk" class="new vector-tab-noicon mw-list-item"><a href="/w/index.php?title=File_talk:United_States_patent_1,394,450,_%22Bread-Toaster%22,_1921.pdf&amp;action=edit&amp;redlink=1" rel="discussion" class="new" title="Discuss improvements to the content page (page does not exist) [t]" accesskey="t"><span>Talk</span></a></li> </ul> </div> </div> <div id="vector-variants-dropdown" class="vector-dropdown emptyPortlet" > <input type="checkbox" id="vector-variants-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-variants-dropdown" class="vector-dropdown-checkbox " aria-label="Change language variant" > <label id="vector-variants-dropdown-label" for="vector-variants-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">English</span> </label> <div class="vector-dropdown-content"> <div id="p-variants" class="vector-menu mw-portlet mw-portlet-variants emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> </div> </div> </nav> </div> <div id="right-navigation" class="vector-collapsible"> <nav aria-label="Views"> <div id="p-views" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-views" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-view" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/File:United_States_patent_1,394,450,_%22Bread-Toaster%22,_1921.pdf"><span>Read</span></a></li><li id="ca-view-foreign" class="vector-tab-noicon mw-list-item"><a href="https://commons.wikimedia.org/wiki/File:United_States_patent_1,394,450,_%22Bread-Toaster%22,_1921.pdf"><span>View on Commons</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="Page tools"> <div id="vector-page-tools-dropdown" class="vector-dropdown vector-page-tools-dropdown" > <input type="checkbox" id="vector-page-tools-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-tools-dropdown" class="vector-dropdown-checkbox " aria-label="Tools" > <label id="vector-page-tools-dropdown-label" for="vector-page-tools-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">Tools</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-tools-unpinned-container" class="vector-unpinned-container"> <div id="vector-page-tools" class="vector-page-tools vector-pinnable-element"> <div class="vector-pinnable-header vector-page-tools-pinnable-header vector-pinnable-header-unpinned" data-feature-name="page-tools-pinned" data-pinnable-element-id="vector-page-tools" data-pinned-container-id="vector-page-tools-pinned-container" data-unpinned-container-id="vector-page-tools-unpinned-container" > <div class="vector-pinnable-header-label">Tools</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">hide</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="More options" > <div class="vector-menu-heading"> Actions </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-more-view" class="selected vector-more-collapsible-item mw-list-item"><a href="/wiki/File:United_States_patent_1,394,450,_%22Bread-Toaster%22,_1921.pdf"><span>Read</span></a></li><li id="ca-more-view-foreign" class="vector-more-collapsible-item mw-list-item"><a href="https://commons.wikimedia.org/wiki/File:United_States_patent_1,394,450,_%22Bread-Toaster%22,_1921.pdf"><span>View on Commons</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> General </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Special:WhatLinksHere/File:United_States_patent_1,394,450,_%22Bread-Toaster%22,_1921.pdf" title="List of all English Wikipedia pages containing links to this page [j]" accesskey="j"><span>What links here</span></a></li><li id="t-upload" class="mw-list-item"><a href="/wiki/Wikipedia:File_Upload_Wizard" title="Upload files [u]" accesskey="u"><span>Upload file</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Special:SpecialPages" title="A list of all special pages [q]" accesskey="q"><span>Special pages</span></a></li><li id="t-print" class="mw-list-item"><a href="javascript:print();" rel="alternate" title="Printable version of this page [p]" accesskey="p"><span>Printable version</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=File:United_States_patent_1,394,450,_%22Bread-Toaster%22,_1921.pdf&amp;action=info" title="More information about this page"><span>Page information</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Special:UrlShortener&amp;url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FFile%3AUnited_States_patent_1%2C394%2C450%2C_%2522Bread-Toaster%2522%2C_1921.pdf"><span>Get shortened URL</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Special:QrCode&amp;url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FFile%3AUnited_States_patent_1%2C394%2C450%2C_%2522Bread-Toaster%2522%2C_1921.pdf"><span>Download QR code</span></a></li> </ul> </div> </div> <div id="p-wikibase-otherprojects" class="vector-menu mw-portlet mw-portlet-wikibase-otherprojects emptyPortlet" > <div class="vector-menu-heading"> In other projects </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> </div> </div> </div> </div> </nav> </div> </div> </div> <div class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="Page tools"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Appearance"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Appearance</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">hide</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> <div id="mw-indicator-commons-icon" class="mw-indicator"><span typeof="mw:File"><a href="https://commons.wikimedia.org/wiki/File:United_States_patent_1,394,450,_%22Bread-Toaster%22,_1921.pdf" title="This is a file from the Wikimedia Commons"><img alt="This is a file from the Wikimedia Commons" src="//upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/15px-Commons-logo.svg.png" decoding="async" width="15" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/22px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/30px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></a></span></div> </div> <div id="siteSub" class="noprint">From Wikipedia, the free encyclopedia</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><ul id="filetoc" role="navigation"><li><a href="#file">File</a></li> <li><a href="#filehistory">File history</a></li> <li><a href="#filelinks">File usage</a></li> <li><a href="#globalusage">Global file usage</a></li> <li><a href="#metadata">Metadata</a></li></ul><div class="mw-filepage-multipage multipageimage"><div class="fullImageLink" id="file"><a href="//upload.wikimedia.org/wikipedia/commons/2/28/United_States_patent_1%2C394%2C450%2C_%22Bread-Toaster%22%2C_1921.pdf"><img alt="File:United States patent 1,394,450, &quot;Bread-Toaster&quot;, 1921.pdf" src="//upload.wikimedia.org/wikipedia/commons/thumb/2/28/United_States_patent_1%2C394%2C450%2C_%22Bread-Toaster%22%2C_1921.pdf/page1-463px-United_States_patent_1%2C394%2C450%2C_%22Bread-Toaster%22%2C_1921.pdf.jpg" decoding="async" width="463" height="599" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/28/United_States_patent_1%2C394%2C450%2C_%22Bread-Toaster%22%2C_1921.pdf/page1-695px-United_States_patent_1%2C394%2C450%2C_%22Bread-Toaster%22%2C_1921.pdf.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/28/United_States_patent_1%2C394%2C450%2C_%22Bread-Toaster%22%2C_1921.pdf/page1-926px-United_States_patent_1%2C394%2C450%2C_%22Bread-Toaster%22%2C_1921.pdf.jpg 2x" data-file-width="1275" data-file-height="1650" /></a><div class="mw-filepage-resolutioninfo">Size of this JPG preview of this PDF file: <a href="//upload.wikimedia.org/wikipedia/commons/thumb/2/28/United_States_patent_1%2C394%2C450%2C_%22Bread-Toaster%22%2C_1921.pdf/page1-463px-United_States_patent_1%2C394%2C450%2C_%22Bread-Toaster%22%2C_1921.pdf.jpg" class="mw-thumbnail-link">463 × 599 pixels</a>. <span class="mw-filepage-other-resolutions">Other resolutions: <a href="//upload.wikimedia.org/wikipedia/commons/thumb/2/28/United_States_patent_1%2C394%2C450%2C_%22Bread-Toaster%22%2C_1921.pdf/page1-185px-United_States_patent_1%2C394%2C450%2C_%22Bread-Toaster%22%2C_1921.pdf.jpg" class="mw-thumbnail-link">185 × 240 pixels</a> | <a href="//upload.wikimedia.org/wikipedia/commons/thumb/2/28/United_States_patent_1%2C394%2C450%2C_%22Bread-Toaster%22%2C_1921.pdf/page1-371px-United_States_patent_1%2C394%2C450%2C_%22Bread-Toaster%22%2C_1921.pdf.jpg" class="mw-thumbnail-link">371 × 480 pixels</a> | <a href="//upload.wikimedia.org/wikipedia/commons/thumb/2/28/United_States_patent_1%2C394%2C450%2C_%22Bread-Toaster%22%2C_1921.pdf/page1-593px-United_States_patent_1%2C394%2C450%2C_%22Bread-Toaster%22%2C_1921.pdf.jpg" class="mw-thumbnail-link">593 × 768 pixels</a> | <a href="//upload.wikimedia.org/wikipedia/commons/thumb/2/28/United_States_patent_1%2C394%2C450%2C_%22Bread-Toaster%22%2C_1921.pdf/page1-1275px-United_States_patent_1%2C394%2C450%2C_%22Bread-Toaster%22%2C_1921.pdf.jpg" class="mw-thumbnail-link">1,275 × 1,650 pixels</a>.</span></div></div> <div class="mw-filepage-multipage-navigation multipageimagenavbox"><form name="pageselector" action="/w/index.php"><input type="hidden" value="File:United_States_patent_1,394,450,_&quot;Bread-Toaster&quot;,_1921.pdf" name="title">Go to page <select id="pageselector" name="page"><option value="1" selected="">1</option> <option value="2">2</option> <option value="3">3</option> <option value="4">4</option> <option value="5">5</option> <option value="6">6</option> <option value="7">7</option> <option value="8">8</option> <option value="9">9</option> <option value="10">10</option></select> <input type="submit" value="Go!"></form> <figure class="mw-default-size mw-halign-none" typeof="mw:File/Thumb"><a href="/w/index.php?title=File:United_States_patent_1,394,450,_%22Bread-Toaster%22,_1921.pdf&amp;page=2" class="mw-file-description"><img alt="next page →" src="//upload.wikimedia.org/wikipedia/commons/thumb/2/28/United_States_patent_1%2C394%2C450%2C_%22Bread-Toaster%22%2C_1921.pdf/page2-180px-United_States_patent_1%2C394%2C450%2C_%22Bread-Toaster%22%2C_1921.pdf.jpg" decoding="async" width="180" height="233" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/28/United_States_patent_1%2C394%2C450%2C_%22Bread-Toaster%22%2C_1921.pdf/page2-270px-United_States_patent_1%2C394%2C450%2C_%22Bread-Toaster%22%2C_1921.pdf.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/28/United_States_patent_1%2C394%2C450%2C_%22Bread-Toaster%22%2C_1921.pdf/page2-360px-United_States_patent_1%2C394%2C450%2C_%22Bread-Toaster%22%2C_1921.pdf.jpg 2x" data-file-width="1275" data-file-height="1650" /></a><figcaption><a href="/w/index.php?title=File:United_States_patent_1,394,450,_%22Bread-Toaster%22,_1921.pdf&amp;page=2" title="File:United States patent 1,394,450, &quot;Bread-Toaster&quot;, 1921.pdf">next page →</a></figcaption></figure> <a href="/w/index.php?title=File:United_States_patent_1,394,450,_%22Bread-Toaster%22,_1921.pdf&amp;page=2" title="File:United States patent 1,394,450, &quot;Bread-Toaster&quot;, 1921.pdf">next page →</a></div></div><div class="mw-content-ltr fullMedia" lang="en" dir="ltr"><p><bdi dir="ltr"><a href="//upload.wikimedia.org/wikipedia/commons/2/28/United_States_patent_1%2C394%2C450%2C_%22Bread-Toaster%22%2C_1921.pdf" class="internal" title="United States patent 1,394,450, &quot;Bread-Toaster&quot;, 1921.pdf">Original file</a></bdi> <span class="fileInfo">(1,275 × 1,650 pixels, file size: 754 KB, MIME type: <span class="mime-type">application/pdf</span>, 10 pages)</span> </p></div><div class="sharedUploadNotice"> <div class="mw-parser-output"> <style data-mw-deduplicate="TemplateStyles:r1238441935">.mw-parser-output .fmbox{clear:both;margin:0.2em 0;width:100%;border:1px solid #a2a9b1;background-color:var(--background-color-interactive-subtle,#f8f9fa);box-sizing:border-box;color:var(--color-base,#202122)}.mw-parser-output .fmbox-warning{border:1px solid #bb7070;background-color:#ffdbdb}.mw-parser-output .fmbox-editnotice{background-color:transparent}.mw-parser-output .fmbox .mbox-text{border:none;padding:0.25em 0.9em;width:100%}.mw-parser-output .fmbox .mbox-image{border:none;padding:2px 0 2px 0.9em;text-align:center}.mw-parser-output .fmbox .mbox-imageright{border:none;padding:2px 0.9em 2px 0;text-align:center}.mw-parser-output .fmbox .mbox-invalid-type{text-align:center}@media screen{html.skin-theme-clientpref-night .mw-parser-output .fmbox-warning{background-color:#300}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .fmbox-warning{background-color:#300}}</style><table id="mw-sharedupload" class="plainlinks fmbox fmbox-system" role="presentation"><tbody><tr><td class="mbox-image"><span class="noviewer" typeof="mw:File"><span title="Wikimedia Commons logo"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/30px-Commons-logo.svg.png" decoding="async" width="30" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/45px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/59px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></span></span></td><td class="mbox-text" style="text-align: center;">This is a file from the <a href="https://commons.wikimedia.org/wiki/Main_Page" class="extiw" title="commons:Main Page">Wikimedia Commons</a>. Information from its <b><a href="https://commons.wikimedia.org/wiki/File:United_States_patent_1,394,450,_%22Bread-Toaster%22,_1921.pdf" class="extiw" title="commons:File:United States patent 1,394,450, &quot;Bread-Toaster&quot;, 1921.pdf">description page there</a></b> is shown below.<br /><span style="font-size: smaller;">Commons is a freely licensed media file repository. <a href="https://commons.wikimedia.org/wiki/Commons:Welcome" class="extiw" title="commons:Commons:Welcome">You can help</a>.</span></td></tr></tbody></table> </div> </div> <div id="shared-image-desc"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="mw-heading mw-heading2"><h2 id="Summary">Summary</h2></div> <div class="hproduct commons-file-information-table"> <table class="fileinfotpl-type-information vevent" dir="ltr"> <tbody><tr> <td id="fileinfotpl_desc" class="fileinfo-paramfield" lang="en">Description<span class="summary fn" style="display:none">United States patent 1,394,450, "Bread-Toaster", 1921.pdf</span></td> <td class="description"> <div class="description en" dir="ltr" lang="en"><span class="language en" title="English"><b>English: </b></span> <a href="https://en.wikipedia.org/wiki/United_States_patent_law" class="extiw" title="en:United States patent law">United States patent</a> #1,394,450. "Bread-Toaster" filed 22 June 1920 and patented 18 October 1921. Serial number 390,706. This copy provided by <a rel="nofollow" class="external free" href="http://www.pat2pdf.org/">http://www.pat2pdf.org/</a></div></td> </tr> <tr> <td id="fileinfotpl_date" class="fileinfo-paramfield" lang="en">Date</td> <td lang="en"> <time class="dtstart" datetime="1921-10-18" lang="en" dir="ltr" style="white-space:nowrap">18 October 1921</time></td> </tr> <tr> <td id="fileinfotpl_src" class="fileinfo-paramfield" lang="en">Source</td> <td> <a href="https://en.wikipedia.org/wiki/United_States_Patent_and_Trademark_Office" class="extiw" title="en:United States Patent and Trademark Office">United States Patent and Trademark Office</a></td> </tr> <tr> <td id="fileinfotpl_aut" class="fileinfo-paramfield" lang="en">Author</td> <td> <a href="https://en.wikipedia.org/wiki/Charles_P._Strite" class="extiw" title="en:Charles P. Strite">Charles P. Strite</a></td> </tr> </tbody></table> </div> <div class="mw-heading mw-heading2"><h2 id="Licensing">Licensing</h2></div> <table class="licensetpl" style="display:none"> <tbody><tr> <td><span class="licensetpl_short">Public domain</span><span class="licensetpl_long">Public domain</span><span class="licensetpl_link_req">false</span><span class="licensetpl_attr_req">false</span> </td></tr></tbody></table> <table style="width: 100%; clear: both; margin: 0.5em auto; background-color: var(--background-color-neutral-subtle, #f7f8ff); color: var(--color-base, #202122); border: var(--border-subtle, 2px solid #8888aa); border-spacing: 8px; padding: 0px;" dir="ltr" class="layouttemplate" lang="en"> <tbody><tr> <td width="70px"><span typeof="mw:File"><span title="Public domain"><img alt="Public domain" src="https://upload.wikimedia.org/wikipedia/commons/thumb/6/62/PD-icon.svg/64px-PD-icon.svg.png" decoding="async" width="64" height="64" class="mw-file-element" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/6/62/PD-icon.svg/96px-PD-icon.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/6/62/PD-icon.svg/128px-PD-icon.svg.png 2x" data-file-width="196" data-file-height="196"></span></span> </td> <td><div lang="en" dir="ltr" class="description en" style="display:inline;">This work is in the <b><a href="https://en.wikipedia.org/wiki/public_domain" class="extiw" title="en:public domain">public domain</a></b> in the <a href="https://en.wikipedia.org/wiki/United_States" class="extiw" title="en:United States">United States</a> because it was <a href="//commons.wikimedia.org/wiki/Commons:Publication" title="Commons:Publication">published</a> (or registered with the <a href="https://en.wikipedia.org/wiki/United_States_Copyright_Office" class="extiw" title="en:United States Copyright Office">U.S. Copyright Office</a>) before January 1, 1929.</div> <hr> <span typeof="mw:File"><span><img src="https://upload.wikimedia.org/wikipedia/commons/thumb/6/6e/Dialog-warning.svg/26px-Dialog-warning.svg.png" decoding="async" width="26" height="26" class="mw-file-element" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/6/6e/Dialog-warning.svg/39px-Dialog-warning.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/6/6e/Dialog-warning.svg/52px-Dialog-warning.svg.png 2x" data-file-width="48" data-file-height="48"></span></span> <small><div lang="en" dir="ltr" class="description en" style="display:inline;">Public domain works must be out of copyright in both the United States and in the source country of the work in order to be hosted on the Commons. If the work is not a U.S. work, the file <b>must</b> have an additional <a href="//commons.wikimedia.org/wiki/Commons:Copyright_tags" title="Commons:Copyright tags">copyright tag</a> indicating the copyright status in the source country.<br><b>Note:</b> This tag should <i>not</i> be used for sound recordings.<span style="display:none;"><span class="licensetpl_short">PD-1923</span><span class="licensetpl_long"><a href="//commons.wikimedia.org/wiki/Public_domain" class="mw-redirect" title="Public domain">Public domain</a> in the United States</span><span class="licensetpl_link">//commons.wikimedia.org/wiki/File:United_States_patent_1,394,450,_%22Bread-Toaster%22,_1921.pdf</span></span></div></small> </td></tr></tbody></table> <table class="licensetpl" style="display:none"> <tbody><tr> <td><span class="licensetpl_short">Public domain</span><span class="licensetpl_long">Public domain</span><span class="licensetpl_link_req">false</span><span class="licensetpl_attr_req">false</span> </td></tr></tbody></table> <table style="width: 100%; clear: both; margin: 0.5em auto; background-color: var(--background-color-neutral-subtle, #f7f8ff); color: var(--color-base, #202122); border: var(--border-subtle, 2px solid #8888aa); border-spacing: 8px; padding: 0px;" dir="ltr" class="boilerplate" lang="en" id="pd"> <tbody><tr> <td><div class="wpImageAnnotatorControl wpImageAnnotatorOff"><span typeof="mw:File"><span title="May or may not be in the public domain"><img alt="May or may not be in the public domain" src="https://upload.wikimedia.org/wikipedia/commons/thumb/f/f2/PDmaybe-icon.svg/64px-PDmaybe-icon.svg.png" decoding="async" width="64" height="64" class="mw-file-element" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/f/f2/PDmaybe-icon.svg/96px-PDmaybe-icon.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/f/f2/PDmaybe-icon.svg/128px-PDmaybe-icon.svg.png 2x" data-file-width="200" data-file-height="200"></span></span></div> </td> <td><b>In general</b>, <a rel="nofollow" class="external text" href="http://www.uspto.gov/news/media/ccpubguide.jsp">the contents of United States patents are in the public domain</a>. <p><b>In specific cases</b>, patent applicants and holders may claim copyright in portions of those documents. In those specific cases, applicants are required to identify the portions that are protected under copyright, and are additionally required to state the following within the body of the application and patent (see <a rel="nofollow" class="external text" href="https://www.uspto.gov/web/offices/pac/mpep/mpep-9020-appx-r.html#d0e320131">37 CFR 1.71(d) &amp; (e)</a> and <a rel="nofollow" class="external text" href="https://www.uspto.gov/web/offices/pac/mpep/mpep-9020-appx-r.html#d0e320999">37 CFR 1.84(s)</a>, and <a rel="nofollow" class="external text" href="https://www.uspto.gov/web/offices/pac/mpep/s608.html#d0e42440">MPEP §&nbsp;608.01(e)</a> &amp; <a rel="nofollow" class="external text" href="https://www.uspto.gov/web/offices/pac/mpep/s608.html#ch600_d1ff6c_2aa9b_29e">(w)</a> and <a rel="nofollow" class="external text" href="https://www.uspto.gov/web/offices/pac/mpep/s1512.html">MPEP § 1512</a>): </p> <blockquote> <p><i>A portion of the disclosure of this patent document contains material which is subject to (copyright or mask work) protection. The (copyright or mask work) owner has no objection to the facsimile reproduction by any­one of the patent document or the patent disclosure, as it appears in the Patent and Trademark Office patent file or records, but otherwise reserves all (copyright or mask work) rights whatsoever.</i> </p> </blockquote> <p>The original patent should be checked for the presence of such language before an assumption is made that the contents are in the public domain. (This template can be replaced by <a href="//commons.wikimedia.org/wiki/Template:PD-US-patent-no_notice" title="Template:PD-US-patent-no notice"><span style="font-family:monospace,monospace;">{{PD-US-patent-no notice}}</span></a> in such cases.) </p> <hr> <p><span style="font-size:x-small;line-height:140%" class="plainlinks noprint"><a class="external text" href="https://commons.wikimedia.org/wiki/Template:PD-US-patent/ar">العربيَّة</a>&nbsp;| <a class="external text" href="https://commons.wikimedia.org/wiki/Template:PD-US-patent/en">English</a>&nbsp;| <a class="external text" href="https://commons.wikimedia.org/wiki/Template:PD-US-patent/es">español</a>&nbsp;| <a class="external text" href="https://commons.wikimedia.org/wiki/Template:PD-US-patent/zh">中文</a>&nbsp;| <small class="plainlinks"><a class="external text" href="https://commons.wikimedia.org/w/index.php?title=Template:PD-US-patent/lang&amp;action=edit">+/−</a></small></span> </p> </td></tr></tbody></table><h1 class="mw-slot-header"><mediainfoslotheader></mediainfoslotheader></h1><mediainfoview style="display: none"><mediainfoviewcaptions><div class="wbmi-entityview-captionsPanel oo-ui-layout oo-ui-panelLayout oo-ui-panelLayout-framed"><h3 class="wbmi-entityview-captions-header">Captions</h3><div class="wbmi-entityview-caption oo-ui-layout oo-ui-horizontalLayout"><label class="wbmi-language-label oo-ui-widget oo-ui-widget-enabled oo-ui-labelElement-label oo-ui-labelElement oo-ui-labelWidget">English</label><div lang="en" dir="ltr" class="wbmi-caption-value">Charles Strite’s pop-up bread toaster - United States patent #1,394,450</div></div></div></mediainfoviewcaptions><mediainfoviewstatements><div id="P180" data-property="P180" data-statements="[]" data-formatvalue="[]" class="wbmi-entityview-statementsGroup wbmi-entityview-statementsGroup-P180 oo-ui-layout oo-ui-panelLayout oo-ui-panelLayout-framed"><div class="wbmi-statements-widget"><div class="wbmi-statement-header"><div class="wbmi-entity-data"><div class="wbmi-entity-title"><h3 class="wbmi-statements-title">Items portrayed in this file</h3><h4 class="wbmi-entity-label"><bdi><a target="_blank" title="d:Special:EntityPage/P180" href="https://www.wikidata.org/wiki/Special:EntityPage/P180">depicts</a></bdi></h4></div></div></div><div class="wbmi-content-items-group"></div></div></div><div id="P571" data-property="P571" data-statements="[{&quot;mainsnak&quot;:{&quot;snaktype&quot;:&quot;value&quot;,&quot;property&quot;:&quot;P571&quot;,&quot;hash&quot;:&quot;a1e454e0a64c199a7de7ad11a1b166f9f0889afc&quot;,&quot;datavalue&quot;:{&quot;value&quot;:{&quot;time&quot;:&quot;+1921-10-18T00:00:00Z&quot;,&quot;timezone&quot;:0,&quot;before&quot;:0,&quot;after&quot;:0,&quot;precision&quot;:11,&quot;calendarmodel&quot;:&quot;http:\/\/www.wikidata.org\/entity\/Q1985727&quot;},&quot;type&quot;:&quot;time&quot;}},&quot;type&quot;:&quot;statement&quot;,&quot;id&quot;:&quot;M55097616$FA135656-36E0-43B5-949D-0CA2BB3679A8&quot;,&quot;rank&quot;:&quot;normal&quot;}]" data-formatvalue="{&quot;{\&quot;value\&quot;:{\&quot;entity-type\&quot;:\&quot;property\&quot;,\&quot;numeric-id\&quot;:571,\&quot;id\&quot;:\&quot;P571\&quot;},\&quot;type\&quot;:\&quot;wikibase-entityid\&quot;}&quot;:{&quot;text\/html&quot;:{&quot;en&quot;:{&quot;&quot;:&quot;<a target=\&quot;_blank\&quot; title=\&quot;d:Special:EntityPage\/P571\&quot; href=\&quot;https:\/\/www.wikidata.org\/wiki\/Special:EntityPage\/P571\&quot;>inception<\/a>&quot;}},&quot;text\/plain&quot;:{&quot;en&quot;:{&quot;&quot;:&quot;inception&quot;}}},&quot;{\&quot;value\&quot;:{\&quot;time\&quot;:\&quot;+1921-10-18T00:00:00Z\&quot;,\&quot;timezone\&quot;:0,\&quot;before\&quot;:0,\&quot;after\&quot;:0,\&quot;precision\&quot;:11,\&quot;calendarmodel\&quot;:\&quot;http:\\\/\\\/www.wikidata.org\\\/entity\\\/Q1985727\&quot;},\&quot;type\&quot;:\&quot;time\&quot;}&quot;:{&quot;text\/html&quot;:{&quot;en&quot;:{&quot;P571&quot;:&quot;18 October 1921<sup class=\&quot;wb-calendar-name\&quot;>Gregorian<\/sup>&quot;}},&quot;text\/plain&quot;:{&quot;en&quot;:{&quot;P571&quot;:&quot;18 October 1921&quot;}}}}" class="wbmi-entityview-statementsGroup wbmi-entityview-statementsGroup-P571 oo-ui-layout oo-ui-panelLayout oo-ui-panelLayout-framed"><div class="wbmi-statements-widget"><div class="wbmi-statement-header"><div class="wbmi-entity-data"><div class="wbmi-entity-title"><h4 class="wbmi-entity-label"><bdi><a target="_blank" title="d:Special:EntityPage/P571" href="https://www.wikidata.org/wiki/Special:EntityPage/P571">inception</a></bdi></h4></div></div></div><div class="wbmi-content-items-group"><div class="wbmi-item wbmi-item-read"><div data-guid="M55097616$FA135656-36E0-43B5-949D-0CA2BB3679A8" class="wbmi-item-container"><div class="wbmi-entity-header"><div class="wbmi-entity-data"><div class="wbmi-entity-title"><h4 class="wbmi-entity-label"><bdi>18 October 1921<sup class="wb-calendar-name">Gregorian</sup></bdi></h4></div></div></div></div></div></div></div></div></mediainfoviewstatements></mediainfoview> <!-- NewPP limit report Parsed by mw‐api‐ext.codfw.main‐86b844476c‐sr9z7 Cached time: 20241023191853 Cache expiry: 2592000 Reduced expiry: false Complications: [] CPU time usage: 0.076 seconds Real time usage: 0.149 seconds Preprocessor visited node count: 535/1000000 Post‐expand include size: 25692/2097152 bytes Template argument size: 4621/2097152 bytes Highest expansion depth: 12/100 Expensive parser function count: 1/500 Unstrip recursion depth: 0/20 Unstrip post‐expand size: 0/5000000 bytes Lua time usage: 0.039/10.000 seconds Lua memory usage: 976448/52428800 bytes Number of Wikibase entities loaded: 1/400 --> <!-- Transclusion expansion time report (%,ms,calls,template) 100.00% 129.785 1 -total 40.15% 52.107 1 Template:Information 38.34% 49.763 1 Template:PD-US-patent 21.29% 27.627 1 Template:PD-1923 13.81% 17.927 1 Template:PD-US-patent/layout 10.73% 13.931 1 Template:PD-US-expired/layout 6.29% 8.163 2 Template:Lang 5.21% 6.762 1 Template:PD-US-expired-text 4.94% 6.409 1 Template:Tl 4.68% 6.069 1 Template:PD-US-patent/lang --> <!-- Saved in parser cache with key commonswiki:pcache:idhash:55097616-0!wb=3!wbMobile=0 and timestamp 20241023191853 and revision id 702304221. Rendering was triggered because: unknown --> </div></div> <h2 id="filehistory">File history</h2> <div id="mw-imagepage-section-filehistory"> <p>Click on a date/time to view the file as it appeared at that time. </p> <table class="wikitable filehistory"> <tr><th></th><th>Date/Time</th><th>Thumbnail</th><th>Dimensions</th><th>User</th><th>Comment</th></tr> <tr><td>current</td><td class="filehistory-selected" style="white-space: nowrap;"><a href="//upload.wikimedia.org/wikipedia/commons/2/28/United_States_patent_1%2C394%2C450%2C_%22Bread-Toaster%22%2C_1921.pdf">20:17, 17 January 2017</a></td><td><a href="//upload.wikimedia.org/wikipedia/commons/2/28/United_States_patent_1%2C394%2C450%2C_%22Bread-Toaster%22%2C_1921.pdf"><img alt="Thumbnail for version as of 20:17, 17 January 2017" src="//upload.wikimedia.org/wikipedia/commons/thumb/2/28/United_States_patent_1%2C394%2C450%2C_%22Bread-Toaster%22%2C_1921.pdf/page1-93px-United_States_patent_1%2C394%2C450%2C_%22Bread-Toaster%22%2C_1921.pdf.jpg" decoding="async" loading="lazy" width="93" height="120" data-file-width="1275" data-file-height="1650" /></a></td><td>1,275 × 1,650, 10 pages <span style="white-space: nowrap;">(754 KB)</span></td><td><a href="/wiki/User:Bluerasberry" class="mw-userlink" title="User:Bluerasberry"><bdi>Bluerasberry</bdi></a></td><td dir="ltr">User created page with UploadWizard</td></tr> </table> </div> <h2 id="filelinks">File usage</h2> <div id='mw-imagepage-section-linkstoimage'> <p>The following 4 pages use this file: </p><ul class="mw-imagepage-linkstoimage"> <li class="mw-imagepage-linkstoimage-ns0"><a href="/wiki/June_1920" title="June 1920">June 1920</a></li> <li class="mw-imagepage-linkstoimage-ns0"><a href="/wiki/Toaster" title="Toaster">Toaster</a></li> <li class="mw-imagepage-linkstoimage-ns1"><a href="/wiki/Talk:Toaster/Archive_1" title="Talk:Toaster/Archive 1">Talk:Toaster/Archive 1</a></li> <li class="mw-imagepage-linkstoimage-ns2"><a href="/wiki/User:AuthoritarianFruitcake73/sandbox" title="User:AuthoritarianFruitcake73/sandbox">User:AuthoritarianFruitcake73/sandbox</a></li> </ul> </div> <h2 id="globalusage">Global file usage</h2> <div id="mw-imagepage-section-globalusage"><p>The following other wikis use this file: </p><ul> <li class='mw-gu-onwiki-ko_wikipedia_org'>Usage on ko.wikipedia.org <ul> <li><a class="external" href="https://ko.wikipedia.org/wiki/%ED%86%A0%EC%8A%A4%ED%84%B0">토스터</a></li> </ul></li> <li class='mw-gu-onwiki-pt_wikipedia_org'>Usage on pt.wikipedia.org <ul> <li><a class="external" href="https://pt.wikipedia.org/wiki/Torradeira">Torradeira</a></li> <li><a class="external" href="https://pt.wikipedia.org/wiki/Usu%C3%A1rio(a):BCalassara/Torradeira">Usuário(a):BCalassara/Torradeira</a></li> </ul></li> <li class='mw-gu-onwiki-ru_wikipedia_org'>Usage on ru.wikipedia.org <ul> <li><a class="external" href="https://ru.wikipedia.org/wiki/%D0%A2%D0%BE%D1%81%D1%82%D0%B5%D1%80">Тостер</a></li> </ul></li> </ul> </div><h2 id="metadata">Metadata</h2> <div class="mw-content-ltr mw-imagepage-section-metadata" lang="en" dir="ltr"><p>This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. </p><p> If the file has been modified from its original state, some details may not fully reflect the modified file.</p><table id="mw_metadata" class="mw_metadata collapsed"> <tbody><tr class="exif-objectname"><th>Short title</th><td>USA101394450</td></tr><tr class="exif-imagedescription"><th>Image title</th><td>00000000</td></tr><tr class="exif-pdf-producer mw-metadata-collapsible"><th>Conversion program</th><td>libtiff / tiff2pdf - 20100615</td></tr><tr class="exif-pdf-encrypted mw-metadata-collapsible"><th>Encrypted</th><td>no</td></tr><tr class="exif-pdf-pagesize mw-metadata-collapsible"><th>Page size</th><td>612 x 792 pts (letter)</td></tr><tr class="exif-pdf-version mw-metadata-collapsible"><th>Version of PDF format</th><td>1.1</td></tr></tbody></table> </div><!--esi <esi:include src="/esitest-fa8a495983347898/content" /> --><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" href="https://en.wikipedia.org/wiki/File:United_States_patent_1,394,450,_%22Bread-Toaster%22,_1921.pdf">https://en.wikipedia.org/wiki/File:United_States_patent_1,394,450,_%22Bread-Toaster%22,_1921.pdf</a>"</div></div> <div id="catlinks" class="catlinks catlinks-allhidden" data-mw="interface"></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> </ul> <ul id="footer-places"> <li id="footer-places-privacy"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Privacy_policy">Privacy policy</a></li> <li id="footer-places-about"><a href="/wiki/Wikipedia:About">About Wikipedia</a></li> <li id="footer-places-disclaimers"><a href="/wiki/Wikipedia:General_disclaimer">Disclaimers</a></li> <li id="footer-places-contact"><a href="//en.wikipedia.org/wiki/Wikipedia:Contact_us">Contact Wikipedia</a></li> <li id="footer-places-wm-codeofconduct"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Universal_Code_of_Conduct">Code of Conduct</a></li> <li id="footer-places-developers"><a href="https://developer.wikimedia.org">Developers</a></li> <li id="footer-places-statslink"><a href="https://stats.wikimedia.org/#/en.wikipedia.org">Statistics</a></li> <li id="footer-places-cookiestatement"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Cookie_statement">Cookie statement</a></li> <li id="footer-places-mobileview"><a href="//en.m.wikipedia.org/w/index.php?title=File:United_States_patent_1,394,450,_%22Bread-Toaster%22,_1921.pdf&amp;mobileaction=toggle_view_mobile" class="noprint stopMobileRedirectToggle">Mobile view</a></li> </ul> <ul id="footer-icons" class="noprint"> <li id="footer-copyrightico"><a href="https://wikimediafoundation.org/" class="cdx-button cdx-button--fake-button cdx-button--size-large cdx-button--fake-button--enabled"><img src="/static/images/footer/wikimedia-button.svg" width="84" height="29" alt="Wikimedia Foundation" loading="lazy"></a></li> <li id="footer-poweredbyico"><a href="https://www.mediawiki.org/" class="cdx-button cdx-button--fake-button cdx-button--size-large cdx-button--fake-button--enabled"><img src="/w/resources/assets/poweredby_mediawiki.svg" alt="Powered by MediaWiki" width="88" height="31" loading="lazy"></a></li> </ul> </footer> </div> </div> </div> <div class="vector-settings" id="p-dock-bottom"> <ul></ul> </div><script>(RLQ=window.RLQ||[]).push(function(){mw.config.set({"wgHostname":"mw-web.codfw.main-f69cdc8f6-vkl22","wgBackendResponseTime":151,"wgPageParseReport":{"limitreport":{"cputime":"0.001","walltime":"0.002","ppvisitednodes":{"value":4,"limit":1000000},"postexpandincludesize":{"value":0,"limit":2097152},"templateargumentsize":{"value":0,"limit":2097152},"expansiondepth":{"value":1,"limit":100},"expensivefunctioncount":{"value":0,"limit":500},"unstrip-depth":{"value":0,"limit":20},"unstrip-size":{"value":0,"limit":5000000},"entityaccesscount":{"value":0,"limit":400},"timingprofile":["100.00% 0.000 1 -total"]},"cachereport":{"origin":"mw-web.codfw.main-f69cdc8f6-vkl22","timestamp":"20241123191756","ttl":2592000,"transientcontent":false}}});});</script> </body> </html>

Pages: 1 2 3 4 5 6 7 8 9 10