Vertical internal combustion engine with overhead valves
CA 2030583 C · Owner: Mitsubishi Jukogyo Kabushiki Kaisha · Inventors: Kobayashi, Kazuyuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A vertical internal combustion engine with overhead valves wherein a crankshaft is vertically arranged and a cylinder is horizontally arranged. In the internal combustion engine wherein a carburetor is fixed on one side of the cylinder and a muffler is fixed on the other side of the cylinder. the configurations of a suction port and an exhaust Port are improved, whereby the fluidity of air-fuel mixture in the engine, a cooling effect of cooling wind and maintenance, are enhanced.
Read the whole patent
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
- Filed November 23, 1990 and granted June 2, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 23, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 23, 2012.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.