Pharmaceutical composition, in particular dermatological or cosmetic, comprising hydrous lipidic lamellar phases or liposomes containing a retinoid or a structural analogue thereof such as a carotenoid
CA 1298195 C · Owner: Moet-Hennessy Recherche · Inventors: Meybeck, Alain; Redziniak, Gerard; Montastier, Christiane
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to a composition comprising hydrous lipidic lamellar phases or liposomes containing as an active agent, a retinoid or a structural analogue of retinoid such as a, carotenoid or tretinoin. These compositions are more efficient against acne and less irritant for the skin and they are used as a pharmaceutical composition, notably dermatological or cosmetic.
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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
- Granted March 31, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 31, 2009.
- 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
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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.