{
  "patent_number": "US 889823",
  "country": "US",
  "title": "How James Spangler Invented the First Portable Electric Vacuum Cleaner",
  "original_title": "Carpet sweeper and cleaner.",
  "summary": "A 1908 patent for a portable suction-based cleaning device that combined a rotating brush with a fan to lift dust into a bag.",
  "what_it_does": "The device uses an electric motor to drive both a rotating brush and a suction fan. The brush loosens dust and dirt from carpet fibers, while the fan creates a vacuum that pulls the debris through a nozzle. The dirt is then captured in a cloth bag attached to the handle, allowing for portable floor cleaning.",
  "what_it_does_not_cover": [
    "Does not cover non-electric carpet sweepers that rely solely on manual pushing to spin brushes.",
    "Does not cover central vacuum systems where the motor and collection bin are permanently installed in a wall.",
    "Does not cover robotic or autonomous navigation systems."
  ],
  "filed": "1907-09-14",
  "granted": "1908-06-02",
  "expires": "1927-09-14",
  "status": "expired",
  "holder": "Individual",
  "holder_url": "https://patentbrief.org/company/individual",
  "inventors": [
    {
      "name": "James M Spangler",
      "url": "https://patentbrief.org/inventor/james-m-spangler"
    }
  ],
  "times_cited": 3,
  "tags": [
    "mechanical",
    "consumer_electronics"
  ],
  "abstract": null,
  "url": "https://patentbrief.org/patent/us/889823/vacuum-cleaner-spangler",
  "markdown_url": "https://patentbrief.org/patent/us/889823/vacuum-cleaner-spangler/md",
  "google_patents_url": "https://patents.google.com/patent/US889823",
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}