Film-forming pharmaceutical composition for transdermic delivery
CA 2214845 C · Owner: Saunal, Henry · Inventors: Illel, Brigitte; Saunal, Henry
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pharmaceutical composition for transdermal delivery including (a) optionally a polymeric release matrix capable of forming a flexible film when dried said matrix being selected from cellulose polymers or copolymers and vinylpyrrolidone/vinyl acetate copolymers (b) an active principle, (c) a transcutaneous absorption promoter for the active principle and (d) a physiologically acceptable non-aqueous solvent capable of dissolving the release matrix the active principle and the transcutaneous absorption promoter and quickly removing same by evaporation on contact with the skin.
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 29, 1996 and granted January 7, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 29, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 29, 2018.
- 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.