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Expired Canadian patentCanada

Acetylene gas generator

CA 66558 A · Owner: Montel, Leo · Inventors: Montel, Leo

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 March 13, 1900. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 13, 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.
FiledNovember 21, 1898
GrantedMarch 13, 1900
Term endedMarch 13, 1917
Patent numberCA 66558 A
Classification (IPC)—

Timeline

Timeline From CIPO dates

1899190119031905190719091911191319151917Application filedNov 21, 1898Patent grantedMarch 13, 1900Term endedMarch 13, 1917

Sources & verification

Official CIPO records

Canadian Patents DatabaseClaims, description, documents and status.CIPO

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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.