Novel alpha adrenergic agents
CA 2457433 A1 · Owner: Seoung-Soo, Hong · Inventors: Miller, Duane D.; Seoung-Soo, Hong
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Aspects of the present invention are directed towards compounds of Formula I for the treatment of human erectile disorders including erectile dysfunction in men (I), wherein: R1 is hydrogen, halo hydroxy, nitro, cyano, phenyl, trifluoromethyl C1-C6 alkyl, C1- C6 alkoxy, carboxy, amino cyclohexyl, C1-C6 , alkyl amino, or (C1-C6 alkyl)2amino; R2 is hydrogen halo, hydroxy, nitro, cyano, trifluoromethyl C1-C6 alkyl, C1-C6 alkoxy, carboxy, amino C1-.sim.6 , alkyl amino, or (C1-C6 alkyl)2amino; R3 is a group of the formula R4 is hydrogen or C1-C6 alkyl; R5 is hydrogen halo, hydroxy, nitro, cyano, phenyl, trifluoromethyl C1-C6 alkyl, C1- C6 alkoxy, carboxy, amino C1-C6 alkylamino, or (C1-C6 …
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 August 9, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 9, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 9, 2024.
- 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.