Heavy duty, high-speed, radial tire
CA 2019800 C · Owner: Nishitani, Masayoshi · Inventors: Ueyoko, Kiyoshi; Nishitani, Masayoshi; Takatsu, Mikio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A heavy duty, high-speed radial tire is provided herein. The tire includes a pair of bead portions each portion having, a bead core disposed therein. A carcass is turned up around the bead cores and is composed of at least one ply of carcass cords which are laid at angles in a range from 75 degrees to 90 degrees with respect to the tire equator the carcass cords, being aromatic polyamide fibre cords. An aromatic polyamide fibre cord belt structure is disposed radially outside the carcass and inside a rubber tread. The belt structure further includes a breaker which is disposed radially outside the carcass and which is composed of at least one ply of the aromatic polyamide fibre belt cords …
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 June 26, 1990 and granted January 4, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 26, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 26, 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.