Four-wheel steerable vehicle having a fore/aft sliding link
CA 2013570 C · Owner: Paccar Inc · Inventors: Ellingsen, Svein
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure A vehicle having four-wheel steering is disclosed. The rotation of the steering wheel is transferred through a steering gear to a double pitman arm. A drag link is coupled to one end of the double pitman arm and to the front-wheel steering control arm. A second drag link is pivotally coupled to the other end of the double pitman arm and to a sliding link. The sliding link extends from a position adjacent the steering gear to a position adjacent the rear axle. A drag link is pivotally coupled from the other end of the sliding link to an idler arm. The idler arm is pivotally coupled to the frame of the vehicle. Another drag link is pivotally coupled to the idler arm …
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 March 30, 1990 and granted June 1, 1993. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 30, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 30, 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.