Valve body for automatic overdrive transmission and method of operation
CA 2288449 C · Owner: Bertrand, Len · Inventors: Bertrand, Len
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A valve body for uses in an automatic overdrive transmission where the hydraulic, fluid passages are blocked in selected locations in the body. The blockages result in, increased pressure in the free passages and redirection of fluid flow such that the, reverse clutch assembly is operable in third gear. By this procedure the , torque capacity, of the transmission is increased.
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 25, 1999 and granted May 15, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 25, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 25, 2021.
- 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.