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Expired Canadian patentCanada

Synchro generating means

CA 581663 A · Owner: Government Of The United States As Represented By The Secretary Of The Army · Inventors: Martin Maurer; Joseph Damon; Samuel Adler

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Granted August 18, 1959. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 18, 1976.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedAugust 18, 1959
Term endedAugust 18, 1976
Patent numberCA 581663 A
Classification (IPC)B25J9/18 +2 more

Timeline

Timeline From CIPO dates

196019621964196619681970197219741976Patent grantedAug 18, 1959Term endedAug 18, 1976

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.