Partially vulcanized shaped rubber composition and preparation of article, including tires, having a component thereof
CA 2314017 A1 · Owner: Lickes, Jean-Paul · Inventors: Gerard, Denis Jean Rene; Henoumont, Marc Jules Alexis; Lickes, Jean-Paul
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to the preparation of a partially vulcanized, pre-shaped rubber composition and use thereof as a component of an article of manufacture. In practice, the partially vulcanized rubber composition is adhered to an unvulcanized rubber substrate to form a composite thereof and the resulting composite vulcanized to create an article of manufacture. Such pre-vulcanized rubber composition is a composite comprised of at least one dime-based elastomer, amorphous silica, coupling agent and liquid dime-based polymer. Such partially vulcanized pre-shaped rubber composition may be a component of a tire such as, for example, an apex, sidewall insert or tread. It may also be a …
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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 18, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 18, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 18, 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.