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Expired Canadian patentCanada

Pipe wrench

CA 59249 A · Owner: Pierce, James H. · Inventors: Pierce, James H.

CIPO record

Overview

Drawings and full text

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 March 11, 1898. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 11, 1915.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 20, 1897
GrantedMarch 11, 1898
Term endedMarch 11, 1915
Patent numberCA 59249 A
Classification (IPC)—

Timeline

Timeline From CIPO dates

189819001902190419061908191019121914Application filedDec 20, 1897Patent grantedMarch 11, 1898Term endedMarch 11, 1915

Sources & verification

Official CIPO records

Canadian Patents DatabaseClaims, description, documents and status.CIPO

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