Driving and steering of motor vehicles
CA 2620119 C · Owner: Cornwell, Ian David · Inventors: Greenwood, Christopher John; Cornwell, Ian David
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An arrangement and a method are disclosed for driving and steering an engine driven vehicle of the type m which , left and right hand wheels 120L 120R are respectively driven from the engine through left and right hand transmissions 122L 122R , and a steering effect is exerted by changing the ratio of one transmission relative to the other. According to the invention a follower is operatively coupled to at least one of the transmissions and is movable circumferentially about an axis by means of a driver actuable steering control to change the relative speeds of the two driven wheels and radially with respect to the axis by means of a driver actuable speed control to …
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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 August 18, 2006 and granted November 25, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 18, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.