Liquid personal cleansing compositions containing polyvalent metal cations
CA 2225617 C · Owner: Macgilp, Neil Archibald · Inventors: Tunis, Adam Michael; Gordon, Gail; Macgilp, Neil Archibald
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to liquid personal cleansing compositions which are relatively low cost to prepare, but which exhibit excellent mildness and rinse feel properties. These compositions comprise from about 1 % to about 30 % of an anionic surfactant, from about 1 % to about 15 % of an amphoteric surfactant, from about 0.5 % to about 5 % of a polyvalent metal cation water , and from 0.1 % to about 30 % of a skin conditioner. The weight ratio of the anionic surfactant to the amphoteric surfactant ranges from about 4:1 to about 1:4. The viscosity of the liquid personal cleansing compositions of the present invention ranges from about 1,000 to about 50,000 cps.
Read the whole patent
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 4, 1996 and granted April 2, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 4, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 4, 2018.
- 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.