Rubber composite material mixed with short staple reinforcing fibers and method of manufacturing the same
CA 2045089 A1 · Owner: Hamada, Takashi · Inventors: Hamada, Takashi
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 Composite material, suitable for use in a power transmission belt, having a rubber matrix and a plurality of short staple reinforcing fibers therein of methaphenyleneiso-phthalamide coated with one of a rubber latex and a rubber paste. The invention is also directed to a method of forming the composite material.
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 June 20, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 20, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 20, 2013.
- 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.