Heavy duty pneumatic radial tire
CA 1260373 A · Owner: Sumitomo Rubber Industries Limited · Inventors: Iuchi, Munenori
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Heavy duty pneumatic radial tire which has the feature as follows : a pair of bead cores ; a carcass ply which is composed of steel cords being turned up around the bead core from the inside toward the outside and disposed with respect to the radial direction ; a belt layer whose cords are disposed at a comparative low angle with respect to the equatorial line of the tire and a steel cord reinforcing layer disposed adjacent to the outside of the turned upportion of the carcass ply the height ho of the said turned up portion from the bead base portion is within a range of between 55 mm and 80 mm. The rubber thickness t which is between the carcass ply itself and its turned up portion, is at …
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 September 26, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 26, 2006.
- 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.