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Expired, full termArchiveSolo inventor

Weigher's rapid weight-stamper

US 1,382,015 A · Inventors: RUDOLPH JAMES W

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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 June 21, 1921. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by June 21, 1938.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledApril 30, 1921
GrantedJune 21, 1921
Term endedJune 21, 1938
Application number—
Classification (CPC)B41K1/04
Length3 pages

Timeline

Timeline From USPTO dates

192219241926192819301932193419361938Application filedApril 30, 1921Patent grantedJune 21, 1921Term endedJune 21, 1938

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