Expired, full termArchiveSolo inventor
Shoe stretcher
US 1,889,357 A · Inventors: GAETANO GUIFFRE
Overview
The published document from the USPTO: abstract, claims, description and drawings. Open it full size
Read the whole patent
Listed from its USPTO record in Patent Yard's full-term archive. Its claims, description and drawings are in the USPTO PDF and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted November 29, 1932. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by November 29, 1949.
- We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledOctober 14, 1931
GrantedNovember 29, 1932
Term endedNovember 29, 1949
Application number—
Classification (CPC)A43D3/08
Length4 pages
Sources & verification
Official USPTO records
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Everything on this page comes from the USPTO record linked above.