Cosmetic compositions
CA 2272634 A1 · Owner: Nawaz, Zahid · Inventors: Nawaz, Zahid; Bell, Michael David; Suginaka, Yasuko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cosmetic composition is disclosed, comprising: (a) a liquid polyol carboxylic acid ester having a polyol moiety and at least 4 carboxylic acid moieties, wherein the polyol moiety is selected from sugars and sugar alcohols containing from about 4 to about 8 hydroxyl groups and wherein each , carboxylic acid moiety has from about 8 to about 22 carbon atoms and wherein , said liquid polyol carboxylic acid ester has a complete melting point of less than about 30 ~C; (b) an emollient material selected from compounds having formula (I) wherein R1 is selected from H or CH3 R2, R3 and R4 are , independently selected from C1-C20 straight chain or branched chain alkyl and , x is an integer of …
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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 November 21, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 21, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 21, 2019.
- 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.