{
  "patent_number": "US 1351086",
  "country": "US",
  "title": "The Invention of Lincoln Logs",
  "original_title": "Toy-cabin construction",
  "summary": "A 1920 patent for a toy construction system using notched wooden logs to build miniature cabins and structures.",
  "what_it_does": "The patent describes a system of wooden logs with notches cut into them at specific intervals. These notches allow the logs to be stacked perpendicularly to create interlocking walls for toy structures like cabins or forts. The design relies on the gravity-fed friction of the notches to keep the walls stable without needing glue or nails. It provides a modular method for children to build three-dimensional structures that look like miniature log cabins.",
  "what_it_does_not_cover": [
    "Does not cover building systems that use plastic bricks or studs like LEGO.",
    "Does not cover non-notched construction sets or blocks that rely solely on stacking without interlocking joints.",
    "Does not cover structural designs for full-sized, habitable buildings."
  ],
  "filed": "1920-01-08",
  "granted": "1920-08-31",
  "expires": "1940-01-08",
  "status": "expired",
  "holder": "Individual",
  "holder_url": "https://patentbrief.org/company/individual",
  "inventors": [
    {
      "name": "Wright John Lloyd",
      "url": "https://patentbrief.org/inventor/wright-john-lloyd"
    }
  ],
  "times_cited": 24,
  "tags": [
    "consumer_electronics"
  ],
  "abstract": null,
  "url": "https://patentbrief.org/patent/us/1351086/lincoln-logs-wright",
  "markdown_url": "https://patentbrief.org/patent/us/1351086/lincoln-logs-wright/md",
  "google_patents_url": "https://patents.google.com/patent/US1351086",
  "relatedPatents": [
    {
      "patentNumber": "1066809",
      "countryCode": "US",
      "title": "How A.C. Gilbert Designed Early Interlocking Toy Construction Blocks",
      "url": "https://patentbrief.org/patent/us/1066809/erector-set-gilbert"
    },
    {
      "patentNumber": "1113371",
      "countryCode": "US",
      "title": "How TinkerToy's Original Wooden Construction Blocks Work",
      "url": "https://patentbrief.org/patent/us/1113371/tinkertoy-pajeau"
    },
    {
      "patentNumber": "3005282",
      "countryCode": "US",
      "title": "How the Modern LEGO Brick Design Works",
      "url": "https://patentbrief.org/patent/us/3005282/lego-toy-brick"
    },
    {
      "patentNumber": "2415012",
      "countryCode": "US",
      "title": "How the Slinky Toy Works",
      "url": "https://patentbrief.org/patent/us/2415012/slinky-toy"
    },
    {
      "patentNumber": "3167440",
      "countryCode": "US",
      "title": "How Play-Doh Was Invented",
      "url": "https://patentbrief.org/patent/us/3167440/play-doh-modeling-compound"
    }
  ]
}