{
  "patent_number": "US 775134",
  "country": "US",
  "title": "How King Gillette Invented the Modern Disposable Safety Razor",
  "original_title": "Razor.",
  "summary": "King Gillette's 1904 patent for a safety razor with a thin, replaceable, double-edged blade that changed how the world shaves.",
  "what_it_does": "The patent describes a safety razor design featuring a thin, flexible, double-edged blade held securely between a guard and a handle. By using a clamping mechanism, the device forces the thin metal blade to curve slightly, which provides the necessary rigidity for shaving while keeping the sharp edge at a safe angle against the skin. This design allows the user to dispose of the blade once it becomes dull, rather than needing to sharpen a heavy, permanent straight razor.",
  "what_it_does_not_cover": [
    "Does not cover traditional straight razors that require manual honing and stropping.",
    "Does not cover electric shaving devices or motorized hair-cutting mechanisms.",
    "Does not cover razors that use a single, thick, non-replaceable blade integrated into the handle.",
    "Does not cover the chemical composition of the steel used in the blades."
  ],
  "filed": "1901-12-03",
  "granted": "1904-11-15",
  "expires": "1921-12-03",
  "status": "expired",
  "holder": "FED TRUST Co",
  "holder_url": "https://patentbrief.org/company/fed-trust-co",
  "inventors": [
    {
      "name": "King C Gillette",
      "url": "https://patentbrief.org/inventor/king-c-gillette"
    }
  ],
  "times_cited": 11,
  "tags": [
    "mechanical",
    "consumer_electronics"
  ],
  "abstract": null,
  "url": "https://patentbrief.org/patent/us/775134/safety-razor-gillette",
  "markdown_url": "https://patentbrief.org/patent/us/775134/safety-razor-gillette/md",
  "google_patents_url": "https://patents.google.com/patent/US775134",
  "relatedPatents": [
    {
      "patentNumber": "1721530",
      "countryCode": "US",
      "title": "How Jacob Schick Invented the Modern Magazine-Loading Safety Razor",
      "url": "https://patentbrief.org/patent/us/1721530/schick-repeating-razor"
    },
    {
      "patentNumber": "1032557",
      "countryCode": "US",
      "title": "How the Modern Disposable Paper Cup Was Invented",
      "url": "https://patentbrief.org/patent/us/1032557/dixie-cup-disposable-paper-cup"
    },
    {
      "patentNumber": "1219881",
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      "url": "https://patentbrief.org/patent/us/1219881/zipper-separable-fastener"
    },
    {
      "patentNumber": "2390636",
      "countryCode": "US",
      "title": "How Laszlo Biro Invented the Modern Ballpoint Pen",
      "url": "https://patentbrief.org/patent/us/2390636/ballpoint-pen-biro"
    },
    {
      "patentNumber": "6281",
      "countryCode": "US",
      "title": "How Walter Hunt Invented the Modern Safety Pin",
      "url": "https://patentbrief.org/patent/us/6281/safety-pin-hunt"
    }
  ]
}