Method and apparatus for automatically selecting an overdrive mode in electronically controlled automobile transmissions
CA 2248056 A1 · Owner: Intermotive, Inc. · Inventors: Schafer, Gregory E.; Prokopik, Edward J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
For motor vehicles equipped with overdrive-equipped transmissions normally biased in one of the overdrive or non-overdrive modes of operation a method , for automatically biasing the transmission to the alternate mode of operation and apparatus to pratice the method. Normally used to bias transmissons from the overdrive to the non-overdrive mode of operation the apparatus and method , taught herein are particularly well-suited for operation in conjunction with automatic transmissions, and are actuated uniquely with each ignition run cycle. Alternatively, the method and apparatus may with equal facility, incorporate other vehicle operations and conditions to actuate its overdrive …
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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
- Filed December 31, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 31, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 31, 2019.
- 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
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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.