Method for making a tyre
CA 2379760 A1 · Owner: Michelin Recherche Et Technique S.A. · Inventors: Bestgen, Luc; Ahouanto, Michel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a method for making a tyre comprising a carcass reinforcement (1) radial in the sidewalls and radially oblique beneath the crown reinforcement (3) consisting of at least two plies (31 and 32) of reinforcing members (310 and 320) cross-layed from one ply to the next. The invention is characterised in that it consists in pre-shaping a diameter D¿1? and using a sleeve of at least a vulcanised shaping ply N consisting of reinforcing members forming with the circumferential direction an angle .alpha.¿1? set on the build up drum T of diameter D at least the central part of a carcass reinforcement ply (1) consisting of radial reinforcing members (10); setting on said central …
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 July 24, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 24, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 24, 2022.
- 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.