High internal pressure type heavy duty pneumatic radial tires
CA 1319600 C · Owner: Shimada, Norihiro · Inventors: Miyamoto, Kenji; Shimada, Norihiro; Tanaka, Makoto
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
High internal pressure type heavy duty pneumatic radial tires are disclosed, which each comprise a tread. Each tire is formed and vulcanized in a mold and the, tread has an outer contour inside the mold which outer, contour sectionally consists of a curve halving a positive radius of curvature with a curvature center on a side of a tire axis at a central portion of the tread extending between points "m" being oppositely separated from a tread (TW/2) center by 0.64 to 0.85 of a half of a width of the tread and a curve having a negative radius of curvature with a curvature center on a side opposite to the tire axis at tread shoulder portions axially outside said points "m". The negative …
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 June 29, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 29, 2010.
- 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.