Pneumatic tyre with run-flat lubrication
CA 1101774 B · Owner: Dunlop Limited · Inventors: Kenney, Michael J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A tyre coating of a gelled non-volatile lubricating material for disposal on at least the interior surface of the tread to facilitate relative movement between contacting portions of the interior surface of the tyre when the tyre is driven deflated. The coating is incapable of flowing away from the portion of the interior surface to which it is applied either under gravity or under the forces generated inside a tyre during inflated running.
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 October 2, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 2, 1996.
- 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.