Patent Yard Sign in
Expired Canadian patentCanada

Window

CA 118159 A · Owner: Gould, Albert Edwin · Inventors: Gould, Albert Edwin

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 May 4, 1909. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 4, 1926.
  • 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 31, 1908
GrantedMay 4, 1909
Term endedMay 4, 1926
Patent numberCA 118159 A
Classification (IPC)—

Timeline

Timeline From CIPO dates

190919111913191519171919192119231925Application filedDec 31, 1908Patent grantedMay 4, 1909Term endedMay 4, 1926

Sources & verification

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