Expired Canadian patentCanada
Compositions for regulating skin wrinkles and/or skin atrophy
CA 2122923 C · Owner: Linares, Carlos G. · Inventors: Linares, Carlos G.; Doughty, Darrell G.; Blank, Roy L.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a composition for regulating wrinkles and/or atrophy in mammalian skin comprising treating the skin with a safe and effective amount of salicylic acid and/or additional active component.
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 9, 1992 and granted January 19, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 9, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 9, 2014.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 9, 1992
GrantedJanuary 19, 1999
Term endedNovember 9, 2012
Patent numberCA 2122923 C
Classification (IPC)A61K8/81 +2 more
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.