Granular detergent composition containing hydrotropes
CA 2183744 C · Owner: Swift, Ronald Allen · Inventors: Swift, Ronald Allen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A detergent composition in form of agglomerates is provided. The detergent composition contains from about 1 % to about 50 % by weight of a detersive surfactant system. The surfactant system itself includes by weight of the surfactant system at least about 30 %, of a sulfated surfactant selected from alkyl sulfates alkyl ethoxy sulfates, secondary alkyl sulfates and mixtures thereof. The detergent includes from about 1 % to about 50 % of a hydrotrope selected from the group consisting of sulfyl succinates xylene sulfonates, cumene, sulfonates and mixtures thereof. Also the detergent composition includes at least about 1 % by weight of a detergency builder to enhance cleaning. The surfactant …
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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 February 24, 1995 and granted April 18, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 24, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 24, 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.