Detergent composition containing oleoyl sarcosinate and anionic surfactants in optimum ratios
CA 2191314 C · Owner: Murch, Bruce Prentiss · Inventors: Baillely, Gerard Marcel Abel; Murch, Bruce Prentiss; Swift, Ronald A. Ii
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A detergent composition surprisingly having improved cleaning performance and improved solubility in aqueous laundering solutions is provided. Specifically, the detergent composition comprises at least 1 % of a surfactant system containing at least one anionic surfactant selected from the group consisting of alkyl benzene sulfonates alkyl ester sulfonates, alkyl sulfates alkyl ethoxy sulfates, secondary alkyl sulfates and mixtures thereof. Also included is at least about 0.1 % of oleoyl sarcosinate wherein the ratio of oleoyl sarcosinate to the surfactant system is from about 1:20 to about 10:1.
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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 May 23, 1995 and granted June 27, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 23, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 23, 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.