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Manufacture of reenforcements for wooden poles, masts, etc., which are set in the ground and have been damaged by weather influences

US 1,416,641 A · Inventors: FRIEDRICH JAECKLE 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 May 16, 1922. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by May 16, 1939.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledJune 11, 1920
GrantedMay 16, 1922
Term endedMay 16, 1939
Application number—
Classification (CPC)E04H12/2276
Length4 pages

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Timeline From USPTO dates

1921192319251927192919311933193519371939Application filedJune 11, 1920Patent grantedMay 16, 1922Term endedMay 16, 1939

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