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Expired Canadian patentCanada

Internal combustion engine

CA 1160921 A · Owner: Deschatelets, Denis · Inventors: Beaudoin, Normand

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

The disclosure herein describes an internal combustion engine wherein the rod connecting the piston to the crankshaft has an enlarged portion defining a track which a crankshaft element cooperatingly engages; the track is topologically shaped so that the effect exerted by the crankshaft element on the corlnecting rGd is reduced and/or cancelled for a given travel distance of the crankshaft element in the track.

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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 January 24, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 24, 2001.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 29, 1981
GrantedJanuary 24, 1984
Term endedJanuary 24, 2001
Patent numberCA 1160921 A
Classification (IPC)F02B75/32 +2 more

Timeline

Timeline From CIPO dates

1982198419861988199019921994199619982000Application filedOct 29, 1981Patent grantedJan 24, 1984Term endedJan 24, 2001

Sources & verification

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