Semi-automatic shift implementation
CA 2109286 C · Owner: Menig, Paul Mark · Inventors: Braun, Eugene Ralph; Menig, Paul Mark
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A vehicular transmission shift control system/method is provided for effecting automatic shifting between sequentially related forward gear ratios within manually selected groups is provided in splitter type command transmissions that include a logic member (178) operative to receive and process an engine speed signal and other signals (176) and to provide an output control signal (192) to a shift actuator (184) that is operative to enable automatic shifting between the sequentially related forward gear ratios within each of a plurality of manually selectable groups whenever one of the groups (202 204) is manually engaged by an operator of the vehicle.
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 October 26, 1993 and granted May 11, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 26, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 26, 2015.
- 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.