Benzylmaltotriosides as inhibitors of smooth muscle cell proliferation
CA 2350759 A1 · Owner: American Home Products Corporation · Inventors: Dollings, Paul Jeffrey
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention provides smooth muscle cell proliferation inhibitors of formula (I) having the structure wherein X is (A) wherein R1 R2, R3, R4, R5, R6, R7, R8, R9 and R10 are each, independently, hydrogen, acyl of 2-7 carbon atoms perfluoroacyl of 2-10 carbon atoms, alkyl of 1-6 carbon atoms perfluoroalkyl , of 1-6 carbon atoms, benzoyl benzyl or -SO3M; M is hydrogen, lithium sodium, potassium or ammonium; R11 is hydrogen alkyl of 1-6 carbon atoms, perfluoroalkyl of 1-6 carbon atomes halogen, nitrile, nitro, or alkoxy of 1-6 carbon atoms; R12 is hydrogen, nitro, amino acylamino of 2-7 carbon atoms, perfluoroacylamino of 2-7 carbon atoms alkylamino of 1-6 carbon atoms, perfluoroalkylamino …
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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 November 23, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 23, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 23, 2021.
- 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.