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 9 January 1931

On  9 January 1931, Thomas Edison filed his final patent application, baased on an earlier application filed in 1926. It was granted posthumously on 16 May 1933, as US Patent No. 1,908,830 for a “Holder for article to be electroplated”.

Across a career spanning sound recording, motion pictures and electric power systems, Edison received 1,093 US patents and 2,332 patents worldwide.

US Patent No. 1,908,830 for a "Holder for Article to be Electroplated".
Drawings from US Patent No. 1,908,830 for a “Holder for Article to be Electroplated”.
Thomas Alva Edison
Thomas Alva EdisonThomas Alva Edison
CountryKindNo.PublishedTitleDownload
USPatent1,908,83016.05.1933Holder for article to be electroplated

Last updated on 12 January 2026