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Jig for assembling locomotive frames

US 1,530,438 A · Inventors: SYKES JOHN P et al.

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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 17, 1925. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by March 17, 1942.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledApril 5, 1922
GrantedMarch 17, 1925
Term endedMarch 17, 1942
Application number—
Classification (CPC)B25H1/0007
Length7 pages

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Timeline From USPTO dates

1923192519271929193119331935193719391941Application filedApril 5, 1922Patent grantedMarch 17, 1925Term endedMarch 17, 1942

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