Triaryl compounds and their use as antiinflammatory
CA 2249546 A1 · Owner: Novartis Ag · Inventors: Manley, Paul William
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
4-oxy-3-(aryl)phenyl-azaryl or -arylcarbonyloxy compounds in free or acid , addition salt form, are useful as pharmaceuticals for treatment and prophylaxis of inflammation, particularly inflammatory or obstructive diseases of the airways, e.g. for asthma therapy. Preferred compounds are novel biphenyl pyridines, biphenyl benzamides and biphenyl phenylcarboxy compounds. The compounds are selective inhibitors of PDE 4 isoenzyme activity and also act to down regulate or inhibit TNF-.alpha. release.
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 7, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 7, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 7, 2019.
- 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.