Ethylene-alpha-olefin belting
CA 2180265 C · Owner: The Gates Rubber Company · Inventors: Yarnell, Larry; South, Bobbie E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Elastomeric compositions for incorporation in articles subject to dynamic loading comprising an ethylene-alpha-olefin elastomer which is reinforced with a metal salt of an .alpha.- .beta.-unsaturated organic acid. This composition is cured using a free-radical promoting material. The invention includes articles subject to dynamic loading incorporating these elastomeric compositions, and belting, including power transmission and flat belting incorporating as their main belt body portions these elastomeric compositions.
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 October 31, 1995 and granted June 12, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 31, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 31, 2017.
- 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.