Precure tread for tire, tires using the same and method of producing tires
CA 1328798 C · Owner: Iwata, Toyomi · Inventors: Ueda, Hiroshi; Iwata, Toyomi; Goto, Naoyuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, A precure tread for tire comprises surface grooves facing a tread face, rear grooves facing a crown portion of a base tire, and a means for communicating the rear grooves to an atmosphere. The tire durability can considerably be improved when this precure tread is applied to a new tire or a retreaded tire.
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 April 26, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 26, 2011.
- 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.