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Expired Canadian patentCanada

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CA 167159 A · Owner: Grosso, Alton E. · Inventors: Grosso, Alton E.

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 January 18, 1916. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 18, 1933.
  • 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 15, 1915
GrantedJanuary 18, 1916
Term endedJanuary 18, 1933
Patent numberCA 167159 A
Classification (IPC)—

Timeline

Timeline From CIPO dates

191619181920192219241926192819301932Application filedNov 15, 1915Patent grantedJan 18, 1916Term endedJan 18, 1933

Sources & verification

Official CIPO records

Canadian Patents DatabaseClaims, description, documents and status.CIPO

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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.