Patent Yard Sign in
Expired Canadian patentCanada

Card index drawer

CA 112559 A · Owner: Kenyon, Bertrand Pardee · Inventors: Kenyon, Bertrand Pardee

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Read the whole patent

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.

Why it's free to use

  • Granted June 23, 1908. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 23, 1925.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 11, 1907
GrantedJune 23, 1908
Term endedJune 23, 1925
Patent numberCA 112559 A
Classification (IPC)—

Timeline

Timeline From CIPO dates

190819101912191419161918192019221924Application filedJune 11, 1907Patent grantedJune 23, 1908Term endedJune 23, 1925

Sources & verification

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