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Expired Canadian patentCanada

Engine combustion apparatus

CA 346475 A · Owner: Raul Pateras Pescara · Inventors: Raul Pateras Pescara

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.

Why it's free to use

  • Granted December 4, 1934. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 4, 1951.
  • 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—
GrantedDecember 4, 1934
Term endedDecember 4, 1951
Patent numberCA 346475 A
Classification (IPC)F02B75/02

Timeline

Timeline From CIPO dates

193519371939194119431945194719491951Patent grantedDec 4, 1934Term endedDec 4, 1951

Sources & verification

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