Large-sized pneumatic radial tire
CA 1067809 A · Owner: Bridgestone Tire Company Limited · Inventors: Arai, Tatuo; Ogawa, Hiroshi; Aoki, Shigeta
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A large-sized pneumatic radial tire is disclosed. This tire comprises a tread including grooves a belt composed, of a plurality of rubberized layers each containing steel cords and a carcass of a radial or semiradial construction. The tread includes two half regions divided with respect to a crown center, one of which being a region in a direction of plysteer due to the tire construction and the ground con-tact reaction force acting on the steel cords of at least one rubberized layer disposed near the tread and the other being a region opposite to the direction of plysteer. Reinforcements are provided on walls of tread grooves at the kicking-out side of the region opposite to the direction …
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
- Granted December 11, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 11, 1996.
- 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.