{
  "patent_number": "US 1394450",
  "country": "US",
  "title": "How the First Automatic Pop-Up Toaster Works",
  "original_title": "Bread-toaster",
  "summary": "Charles Strite's 1921 patent for the first toaster that automatically pops bread up after a set time, preventing it from burning.",
  "what_it_does": "The patent describes a mechanical toaster featuring a timer mechanism that controls the heating duration and a spring-loaded carriage. Once the timer expires, it triggers a release mechanism that allows the spring to push the bread carriage upward, effectively removing the toast from the heating elements. This design ensures the bread is toasted to a specific degree without requiring manual monitoring or intervention.",
  "what_it_does_not_cover": [
    "Does not cover electronic sensors that detect the color or moisture level of the bread.",
    "Does not cover toasters that use conveyor belts for continuous toasting.",
    "Does not cover induction-based heating methods."
  ],
  "filed": "1920-06-22",
  "granted": "1921-10-18",
  "expires": "1940-06-22",
  "status": "expired",
  "holder": "Individual",
  "holder_url": "https://patentbrief.org/company/individual",
  "inventors": [
    {
      "name": "Charles P Strite",
      "url": "https://patentbrief.org/inventor/charles-p-strite"
    }
  ],
  "times_cited": 2,
  "tags": [
    "mechanical",
    "consumer_electronics"
  ],
  "abstract": null,
  "url": "https://patentbrief.org/patent/us/1394450/pop-up-toaster-strite",
  "markdown_url": "https://patentbrief.org/patent/us/1394450/pop-up-toaster-strite/md",
  "google_patents_url": "https://patents.google.com/patent/US1394450",
  "relatedPatents": [
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  ]
}