{
  "patent_number": "US 2960558",
  "country": "US",
  "title": "How the Modern Alkaline Battery Was Invented",
  "original_title": "Dry cell",
  "summary": "A 1957 patent from Union Carbide that defined the construction of the long-lasting alkaline battery, replacing older zinc-carbon designs.",
  "what_it_does": "This patent describes a specific chemical and physical structure for a dry cell battery. It focuses on the arrangement of the anode and cathode materials to improve energy density and shelf life. By using a specific electrolyte and separator configuration, it allows the battery to maintain a steady voltage over a longer period compared to the older Leclanche cells that were standard at the time.",
  "what_it_does_not_cover": [
    "Does not cover lithium-ion or other rechargeable battery chemistries.",
    "Does not cover the internal circuitry of the devices the battery powers.",
    "Does not cover button-cell batteries with different structural sealing methods."
  ],
  "filed": "1957-10-09",
  "granted": "1960-11-15",
  "expires": "1977-11-15",
  "status": "expired",
  "holder": "Union Carbide Corp",
  "holder_url": "https://patentbrief.org/company/union-carbide-corp",
  "inventors": [
    {
      "name": "Paul A Marsal",
      "url": "https://patentbrief.org/inventor/paul-a-marsal"
    },
    {
      "name": "Kordesch Karl",
      "url": "https://patentbrief.org/inventor/kordesch-karl"
    },
    {
      "name": "Lewis F Urry",
      "url": "https://patentbrief.org/inventor/lewis-f-urry"
    }
  ],
  "times_cited": 25,
  "tags": [
    "energy",
    "consumer_electronics"
  ],
  "abstract": null,
  "url": "https://patentbrief.org/patent/us/2960558/alkaline-battery-dry-cell",
  "markdown_url": "https://patentbrief.org/patent/us/2960558/alkaline-battery-dry-cell/md",
  "google_patents_url": "https://patents.google.com/patent/US2960558",
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}