Pneumatic tire and inner liner therefor having puncture sealing characteristics
CA 1215619 A · Owner: Polysar Limited · Inventors: Walker, John; Mohammed, Sheikh A.H.; Timar, John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure There is provided a tubeless pneumatic tire having puncture sealing characteristics comprising as the inner liner a puncture sealing laminate having two outer halobutyl polymer containing layers and an inner butyl polymer containing layer, the laminate having been irradiated such that the inner layer has a Mooney (ML 1+4 at 100°C) of less than about 12.
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 December 23, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 23, 2003.
- 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.