{
  "patent_number": "US 3142599",
  "country": "US",
  "title": "How Bubble Wrap Is Manufactured",
  "original_title": "Method for making laminated cushioning material",
  "summary": "A 1959 manufacturing process that creates cushioning material by trapping air between two layers of plastic film.",
  "what_it_does": "The patent describes a continuous manufacturing process for creating air-filled cushioning material. A thermoplastic film is heated to a specific temperature—soft enough to be shaped but not hot enough to melt—and pressed into a roller with discrete depressions to form bubbles. A second film is then heated and sealed over the first, trapping air within the embossed pockets to create a protective, flexible material.",
  "what_it_does_not_cover": [
    "Does not cover the use of non-thermoplastic materials like paper or fabric.",
    "Does not cover methods that do not use a female molding roller with discrete depressions.",
    "Does not cover the specific chemical composition of the plastic used, only the mechanical process of forming and sealing."
  ],
  "filed": "1959-11-27",
  "granted": "1964-07-28",
  "expires": "1981-07-28",
  "status": "expired",
  "holder": "Sealed Air Corp",
  "holder_url": "https://patentbrief.org/company/sealed-air-corp",
  "inventors": [
    {
      "name": "Marc A Chavannes",
      "url": "https://patentbrief.org/inventor/marc-a-chavannes"
    }
  ],
  "times_cited": 185,
  "tags": [
    "mechanical",
    "materials",
    "consumer_electronics"
  ],
  "abstract": null,
  "url": "https://patentbrief.org/patent/us/3142599/bubble-wrap-cushioning",
  "markdown_url": "https://patentbrief.org/patent/us/3142599/bubble-wrap-cushioning/md",
  "google_patents_url": "https://patents.google.com/patent/US3142599",
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}