Lubricating compositions comprising fatty acid esters and amides for friction material interfaces
CA 2425205 C · Owner: Mcleod, Kenneth L. · Inventors: Mcleod, Kenneth L.; Lantuejoul, Karine; Vartanian, Paul F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A certain combination of an oil-soluble fatty acid ester of a polyhydric alcohol , and an oil-soluble fatty acid amide act as appropriate friction-modifying agents, which when added to a lubricating oil exhibit good brake anti-chatter , characteristics.
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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 April 11, 2003 and granted March 27, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 11, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 11, 2025.
- 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
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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.