Stable multiple emulsion cosmetic composition comprising high levels of surfactant
CA 2388161 A1 · Owner: Rosano, Henri Louis · Inventors: Gandolfo, Francois Gerard; Vasudevan, Tirucherai Varahan; Mouncine, Kanouni
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
W1-O-W2 emulsions are disclosed in which the W1/O emulsion comprises an internal aqueous phase comprising a benefit agent and an oil phase surrounding it, and, around this is found an external isotropic aqueous phase wherein the external surfactant phase does not comprise an amido containing anionic. Methods of stabilizing the multiple oil compositions are also disclosed.
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 October 19, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 19, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 19, 2022.
- 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.