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Expired Canadian patentCanada

Storm door

CA 65720 A · Owner: Cobb, Oscar · Inventors: Cobb, Oscar

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 January 10, 1900. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 10, 1917.
  • 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 18, 1899
GrantedJanuary 10, 1900
Term endedJanuary 10, 1917
Patent numberCA 65720 A
Classification (IPC)—

Timeline

Timeline From CIPO dates

190019021904190619081910191219141916Application filedDec 18, 1899Patent grantedJan 10, 1900Term endedJan 10, 1917

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.