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Expired, full termArchiveSolo inventor

Folding typewriting-machine

US 1,387,362 A · Inventors: DE CLAMECY PHILIPPE

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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 August 9, 1921. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by August 9, 1938.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledMarch 29, 1917
GrantedAugust 9, 1921
Term endedAugust 9, 1938
Application number—
Classification (CPC)B41J3/37
Length9 pages

Timeline

Timeline From USPTO dates

1918192119241927193019331936Application filedMarch 29, 1917Patent grantedAug 9, 1921Term endedAug 9, 1938

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