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Expired Canadian patentCanada

Internal combustion engine

CA 1190106 A · Owner: Outboard Marine Corporation · Inventors: Kirk, J. David

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 invention provides an internal combustion engine comprising a cylinder block having therein a bore and first, second and third openings each communicating with the bore. A cover member having therein first and second cavities is removably attachable on the cylinder block with the first cavity communicating with the first bore opening and the second cavity communicating with each of the second and third bore openings. The cover member cavities and the associated bore openings together form passages communicating with the bore.

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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 July 9, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 9, 2002.
  • 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 27, 1981
GrantedJuly 9, 1985
Term endedJuly 9, 2002
Patent numberCA 1190106 A
Classification (IPC)F02F1/24 +2 more

Timeline

Timeline From CIPO dates

1982198519881991199419972000Application filedNov 27, 1981Patent grantedJuly 9, 1985Term endedJuly 9, 2002

Sources & verification

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