Compounds with mixed pde-inhibitory and .beta.-adrenergic antagonist or partial agonist activity for treatment of heart failure
CA 2506741 A1 · Owner: Leighton, Harry Jefferson · Inventors: Hamilton, Gregory S.; Leighton, Harry Jefferson
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention provides compounds that possess inhibitory activity against .beta.-~adrenergic receptors and phosphodiesterase PDE including , phosphodiesterase 3 (PDE3 ). This invention further provides pharmaceutical compositions comprising such ~compounds; methods of using such compounds for treating cardiovascular disease, stroke epilepsy, ophthalmic disorder or , migraine; and methods of preparing pharmaceutical compositions and compounds that possess inhibitory activity against .szlig.-adrenergic receptors and PDE.
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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 28, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 28, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 28, 2025.
- 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.