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Expired, full termArchiveSolo inventor

Guard for punching-machines

US 1,385,237 A · Inventors: BAKER WOODWARD SAMUEL

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2 drawing sheets

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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 July 19, 1921. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by July 19, 1938.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledMay 17, 1921
GrantedJuly 19, 1921
Term endedJuly 19, 1938
Application number—
Classification (CPC)F16P3/04 +1 more
Length4 pages

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