3-substituted-2-oxindole derivatives
CA 2014467 C · Owner: Pfizer Limited · Inventors: Schulte, Gary R.; Goddard, Carl J.; Ehrgott, Frederick J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to novel 3-substituted-2-oxindole derivatives which are inhibitors of, prostaglandin H2 synthase 5-lipoxpgenase and, interleukin-1 biosynthesis. The compounds of the invention are useful as inhibitors of prostaglandin H2 synthase and interleukin-1 biosynthesis per se, and as, analgesic, antiinflammatory and antiarthritic agents in the treatment of chronic inflammatory diseases. This invention also relates to pharmaceutical compositions comprising said 3-substituted-2-oxindole derivatives; to methods of inhibiting prostaglandin H2 synthase and biosynthesis of interleukin-1 and to treating chronic inflammatory diseases in a mammal with said compounds. Further this …
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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 April 12, 1990 and granted February 8, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 12, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 12, 2012.
- 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.