Topical compositions having improved skin feel
CA 2227967 C · Owner: Albacarys, Lourdes Dessus · Inventors: Hasenoehrl, Erik John; Listro, Joseph Anthony; Albacarys, Lourdes Dessus
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The compositions of the present invention are useful for topical application to human skin. These compositions provide improved skin feel. These compositions can be in the form of leave-on products or products that are rinsed or wiped from the skin after use. These compositions are also useful for conditioning, desquamating, and cleansing the skin and for relieving dry skin. A topical personal care composition comprising: (a) from 0.1 % to 20 % by weight of an amphoteric surfactant having the structure (I) wherein R1 is unsubstituted, saturated or unsaturated straight or branched chain alkyl , having from 9 to 22 carbon atoms; m is an integer from 1 to 3; n is 0 or 1; R2 and R3 are …
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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 July 17, 1996 and granted June 4, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 17, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 17, 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.