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Expired Canadian patentCanada

Cooling system with removable valve member

CA 1187357 A · Owner: Outboard Marine Corporation · Inventors: Luksch, Heinrich E.

CIPO record

Overview

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

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Abstract From the Canadian patent

Disclosed herein is an engine cooling system comprising a first wall in an engine block defining a coolant jacket including an upstream coolant jacket portion, a downstream coolant jacket portion and a, passage portion extending therebetween and including therein a valve seat, a second wall in the engine block defining a void opening into the exterior surface of the block and communicating with the coolant jacket in general alignment with the passage portion a third, wall in the engine block defining a recess opening into the exterior surface of the block and communicating with the void, a valve member having a flange with opposed first and second surfaces, which first surface engages the …

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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 May 21, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 21, 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.
FiledJanuary 19, 1982
GrantedMay 21, 1985
Term endedMay 21, 2002
Patent numberCA 1187357 A
Classification (IPC)F01P3/02 +2 more

Timeline

Timeline From CIPO dates

1983198519871989199119931995199719992001Application filedJan 19, 1982Patent grantedMay 21, 1985Term endedMay 21, 2002

Sources & verification

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