Expired Canadian patentCanada
Quinoline derivatives as tachykinin nk3 receptor antagonists
CA 2191352 C · Owner: Smithkline Beecham Farmaceutici S.P.A. · Inventors: Raveglia, Luca Francesco; Grugni, Mario; Farina, Carlo
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
NK3 receptor antagonists of formula (I) are useful in treating inter alia pulmonary disorders, CNS disorders and neurodegenerative disorders.
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 May 23, 1995 and granted January 30, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 23, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 23, 2017.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 23, 1995
GrantedJanuary 30, 2001
Term endedMay 23, 2015
Patent numberCA 2191352 C
Classification (IPC)C07D215/50 +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.