Pneumatic radial tire with improved inflected sidewall profile
CA 2014572 C · Owner: Nakajima, Yukio · Inventors: Nakajima, Yukio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a pneumatic radial tire comprising a radial carcass and a belt, when the tire is mounted onto a normal rim and inflated under an internal pressure corresponding to 5% of a normal internal pressure a, carcass line of the carcass in radial section of the tire at a self-posture under no load has at least two inflection points between positions A and C and/or between positions C and B in which A is a position corresponding to each end of the belt at its maximum width, B is a position corresponding to a width of the normal rim and C is a position corresponding to a maximum width of the carcass.
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 April 12, 1990 and granted September 9, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 12, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 12, 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.