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Mining locomotive

US 1,410,596 A · Inventors: PRAY THOMAS E

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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 March 28, 1922. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by March 28, 1939.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledJuly 19, 1919
GrantedMarch 28, 1922
Term endedMarch 28, 1939
Application number—
Classification (CPC)B61F15/04
Length6 pages

Timeline

Timeline From USPTO dates

1920192219241926192819301932193419361938Application filedJuly 19, 1919Patent grantedMarch 28, 1922Term endedMarch 28, 1939

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