Novel caffeic acid derivative, oraposide, and cosmetic or pharmaceutic, especially dermatological, composition containing it
CA 2102689 A1 · Owner: Andary, Claude · Inventors: Andre, Patrice; Andary, Claude
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A novel derivative of caffeic acid has formula (I) where one or several R independently represent a hydrogen atom a C1-C5 alkyl group, particularly methyl an acyl group, particularly C1-C6, specifically acetyl. This novel derivative designated oraposide is particularly useful for preparing cosmetic or pharmaceutical particularly dermatological, compositions due particularly to its activity against free radicals inflammation and actinic ageing.
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 March 21, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 21, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 21, 2013.
- 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.