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Expired Canadian patentCanada

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CA 186014 A · Owner: Corley, Quentin Durward · Inventors: Corley, Quentin Durward

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.

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Why it's free to use

  • Granted August 13, 1918. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 13, 1935.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 13, 1917
GrantedAugust 13, 1918
Term endedAugust 13, 1935
Patent numberCA 186014 A
Classification (IPC)—

Timeline

Timeline From CIPO dates

191819201922192419261928193019321934Application filedNov 13, 1917Patent grantedAug 13, 1918Term endedAug 13, 1935

Sources & verification

Official CIPO records

Canadian Patents DatabaseClaims, description, documents and status.CIPO

Cross-check elsewhere

Google PatentsFull text, worldwide family, citing patents and legal events.patents.google.com

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