Radial tire
CA 2027733 A1 · Owner: Sumitomo Rubber Industries Limited · Inventors: Kadomaru, Kazuo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A radial tire which comprises a carcass having a ply of cords arranged at an angle of 75 to 90 degrees with respect to the tire equator, and a belt disposed radially outside the carcass and comprising plural plies of parallel cords laid at an inclination angle of not more than 35 degrees to the tire equator, wherein the belt cord is composed of at least one steel strand and at least one organic strand which are twisted together, and the elongation of the cord when loaded by 5kg load is not less than 2%, and the elongation of the cord when loaded by 20kg load is not more than 4%.
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 October 16, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 16, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 16, 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.