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CA 71663 A · Owner: Wakefield, Matthew · Inventors: Wakefield, Matthew

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 June 4, 1901. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 4, 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.
FiledMay 14, 1901
GrantedJune 4, 1901
Term endedJune 4, 1918
Patent numberCA 71663 A
Classification (IPC)—

Timeline

Timeline From CIPO dates

190219041906190819101912191419161918Application filedMay 14, 1901Patent grantedJune 4, 1901Term endedJune 4, 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.