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Expired Canadian patentCanada

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CA 69787 A · Owner: Pinkerton Prichard, Anthony · Inventors: Pinkerton Prichard, Anthony

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.

Google PatentsCIPO record

Why it's free to use

  • Granted January 3, 1901. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 3, 1918.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 18, 1899
GrantedJanuary 3, 1901
Term endedJanuary 3, 1918
Patent numberCA 69787 A
Classification (IPC)—

Timeline

Timeline From CIPO dates

1900190219041906190819101912191419161918Application filedSep 18, 1899Patent grantedJan 3, 1901Term endedJan 3, 1918

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.