Patent Yard Sign in
Expired Canadian patentCanada

Window

CA 243775 A · Owner: Henry N. Mcgaughey · Inventors: Henry N. Mcgaughey

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 October 21, 1924. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 21, 1941.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedOctober 21, 1924
Term endedOctober 21, 1941
Patent numberCA 243775 A
Classification (IPC)E05C17/60

Timeline

Timeline From CIPO dates

192519271929193119331935193719391941Patent grantedOct 21, 1924Term endedOct 21, 1941

Sources & verification

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