Multi-membered vehicle, especially articulated bus
CA 2006447 C · Owner: Gumpert, Horst J. · Inventors: Gumpert, Horst J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Multi-membered vehicle, especially articulated bus with, an articulated connection between two vehicle members (21, 22) which contains a rotary mount. The vehicle members are connected to one another in an essentially torsion-resistant manner about the longitudinal axis. On an uneven ground, therefore, high torsional forces must be transmitted via the rotary mount. Whereas in conventional, rotary mounts, the rings (1 3) forming the rotary, mount are stabilised in relation to these forces as a result of their connection to crosspieces according to, the invention the outer rotary ring (1) of the rotary mount is provided with sufficient rigidity to form this crosspiece itself. A reduction of …
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 December 21, 1989 and granted March 30, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 21, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 21, 2011.
- 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.