Ceramide compound, process for preparing it and its use
CA 2250479 A1 · Owner: Philippe, Michel · Inventors: Tuloup, Remy; Philippe, Michel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to novel ceramide compounds the process for preparing them and their use particularly in the treatment and care of skin hair, nails and eyelashes, in cosmetic or pharmaceutical applications; the compounds are of the formula (I): R1 - CH(OH) - CH(CH2OH) - NH - CO - NR2R3 wherein: * R1 is a saturated or unsaturated linear or branched, optionally hydroxylated C9 to C23 alkyl radical * R2 is hydrogen or a saturated or unsaturated linear or branched, C1 to C8 alkyl radical * R3 is a linear or branched, saturated or unsaturated optionally hydroxylated, C1 to C32 alkyl radical; the said hydroxyl radical can be substituted with a linear or branched saturated or unsaturated, C1 …
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 November 3, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 3, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 3, 2020.
- 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.