{
  "patent_number": "US 3167440",
  "country": "US",
  "title": "How Play-Doh Was Invented",
  "original_title": "Plastic modeling composition of a soft, pliable working consistency",
  "summary": "The original 1965 patent for the soft, non-toxic modeling compound known as Play-Doh, detailing a specific mixture of flour, water, salt, and kerosene.",
  "what_it_does": "The patent defines a specific chemical mixture that creates a soft, pliable, and non-sticky modeling clay. The composition relies on a precise ratio of grain flour, water, a water-soluble inorganic chlorine salt, and a small amount of kerosene. This combination allows the material to remain lump-free and re-workable over long periods without drying out or becoming toxic to children. By balancing these ingredients, the inventors created a substance that holds its shape when molded but remains soft enough for easy manipulation.",
  "what_it_does_not_cover": [
    "Does not cover modeling compounds that exclude the specific range of kerosene as a lubricant.",
    "Does not cover clay-based modeling materials that do not use grain flour as the primary base.",
    "Does not cover mixtures that omit the water-soluble inorganic chlorine salt."
  ],
  "filed": "1960-05-17",
  "granted": "1965-01-26",
  "expires": "1982-01-26",
  "status": "expired",
  "holder": "Rainbow Crafts Inc",
  "holder_url": "https://patentbrief.org/company/rainbow-crafts-inc",
  "inventors": [
    {
      "name": "Noah W Mcvicker",
      "url": "https://patentbrief.org/inventor/noah-w-mcvicker"
    },
    {
      "name": "Joseph S Mcvicker",
      "url": "https://patentbrief.org/inventor/joseph-s-mcvicker"
    }
  ],
  "times_cited": 29,
  "tags": [
    "consumer_electronics"
  ],
  "abstract": null,
  "url": "https://patentbrief.org/patent/us/3167440/play-doh-modeling-compound",
  "markdown_url": "https://patentbrief.org/patent/us/3167440/play-doh-modeling-compound/md",
  "google_patents_url": "https://patents.google.com/patent/US3167440",
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}