{
  "patent_number": "US 22186",
  "country": "US",
  "title": "John Mason's 1858 Patent for the Mason Jar Lid",
  "original_title": "Toot l",
  "summary": "An 1858 invention by John L. Mason that introduced a threaded glass jar and a screw-on metal lid to create an airtight seal for home food preservation.",
  "what_it_does": "The patent describes a method for sealing glass jars using a threaded neck and a corresponding metal screw cap. By incorporating a rubber gasket between the glass rim and the metal lid, the design creates a vacuum seal when the jar cools after being filled with hot contents. This mechanism effectively prevented air from entering the jar, which was essential for long-term food storage before the widespread availability of refrigeration.",
  "what_it_does_not_cover": [
    "Does not cover non-threaded glass containers or those using cork stoppers.",
    "Does not cover the process of heat-treating or canning food itself.",
    "Does not cover plastic lids or modern vacuum-sealing machines."
  ],
  "filed": null,
  "granted": "1858-11-30",
  "expires": null,
  "status": "active",
  "holder": "John L. Mason",
  "holder_url": "https://patentbrief.org/company/john-l-mason",
  "inventors": [],
  "times_cited": 8,
  "tags": [
    "mechanical",
    "materials"
  ],
  "abstract": null,
  "url": "https://patentbrief.org/patent/us/22186/mason-jar",
  "markdown_url": "https://patentbrief.org/patent/us/22186/mason-jar/md",
  "google_patents_url": "https://patents.google.com/patent/US22186",
  "relatedPatents": [
    {
      "patentNumber": "2487400",
      "countryCode": "US",
      "title": "How Earl Tupper Invented the Airtight Plastic Food Container",
      "url": "https://patentbrief.org/patent/us/2487400/tupperware-airtight-seal"
    },
    {
      "patentNumber": "468226",
      "countryCode": "US",
      "title": "How the Crown Cork Bottle Cap Changed Soda and Beer",
      "url": "https://patentbrief.org/patent/us/468226/bottle-cap-crown-cork-painter"
    },
    {
      "patentNumber": "3349949",
      "countryCode": "US",
      "title": "The Invention of the Modern Soda Can Pull-Tab",
      "url": "https://patentbrief.org/patent/us/3349949/pull-tab-pop-top-can"
    },
    {
      "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": "293545",
      "countryCode": "US",
      "title": "How Lewis Waterman's Original Fountain Pen Design Worked",
      "url": "https://patentbrief.org/patent/us/293545/fountain-pen-waterman"
    }
  ]
}