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Fire-control apparatus for naval guns

US 1,557,545 A · Inventors: WALTHER AKEMANN

USPTO PDF

Overview

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

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Read the whole patent

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.

Why it's free to use

  • Granted October 20, 1925. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by October 20, 1942.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledMarch 3, 1924
GrantedOctober 20, 1925
Term endedOctober 20, 1942
Application number—
Classification (CPC)F41G5/20
Length8 pages

Timeline

Timeline From USPTO dates

192519271929193119331935193719391941Application filedMarch 3, 1924Patent grantedOct 20, 1925Term endedOct 20, 1942

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