Improvement of noise behavior of non-asbestos friction materials through use of fluoropolymers
CA 2413249 A1 · Owner: Honeywell Inc. · Inventors: Kesavan, Sunil Kumar
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Friction materials which contain at least one fluoropolymer material for use in friction linings for applications such as but not limited to brake disk , pads, are described. The fluoropolymer material such as, but not limited to , PTFE, FEP and PVDF, is preferably present in an amount of from about 0.1 to about 5 weight percent, based on the total weight of the friction material matrix.
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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 18, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 18, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 18, 2023.
- 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.