Shampoo compositions with silicone, cationic polymer, and oily liquid conditioning agents
CA 2120492 C · Owner: King, Bonnie T. · Inventors: Schmidt, Robert R.; King, Bonnie T.; Wells, Robert L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed are hair conditioning shampoo compositions comprising: (a) from about 5 % to about 50 %, by weight, of an anionic surfactant component; (b) from about 0.05 % to about 10 % by weight, of a , dispersed, insoluble nonvolatile, nonionic silicone, hair conditioning agent; (c) from about 0.05 % to about 10 % by weight, of a , water soluble, cationic organic hair conditioning polymer agnet having a cationic charge density of from about 0.9 meq/gram to about 4 meq/gram; (d) from about 0.05 % to about 5 %, by weight, of an organic, nonvolatile water insoluble, liquid , selected from the group consisting of hydrocarbon oils and fatty esters, and mixtures thereof; and (e) an aqueous …
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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 October 27, 1992 and granted December 28, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 27, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 27, 2014.
- 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.