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US 1,780,038 A · Inventors: PARKER GEORGE S

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The published document from the USPTO: abstract, claims, description and drawings. Open it full size

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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 October 28, 1930. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by October 28, 1947.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledJanuary 28, 1930
GrantedOctober 28, 1930
Term endedOctober 28, 1947
Application number—
Classification (CPC)A63F3/00176
Length9 pages

Timeline

Timeline From USPTO dates

193119331935193719391941194319451947Application filedJan 28, 1930Patent grantedOct 28, 1930Term endedOct 28, 1947

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