Pneumatic tire having self-sealing feature
CA 1104475 A · Owner: The Goodyear Tire & Rubber Company · Inventors: Egan, William E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, Self-sealing pneumatic tire having a oil treated integral, thin, covulcanized, resilient rubber, closed, cell structure on its inner surface in which the vulcanized rubber of said closed cell structure contains compounded rubber processing oil and, in its vulcanized state, is further treated to absorb an additional nonvolatile oil.
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 July 7, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 7, 1998.
- 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.