Rubber article with junction of two rubber mixture compositions
CA 2348667 A1 · Owner: Michelin Recherche Et Technique S.A. · Inventors: Morel, Noel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a rubber article consisting of at least two rubber compositions A and B having different constituents and properties said two compositions A and B presenting an overlapping junction J. The invention is characterised in that at least one of the edges of at least one of the two compositions A B has one end with an oscillatory line. The product is preferably a tyre.
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 October 28, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 28, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 28, 2021.
- 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.