Oral therapeutic or preventive drugs for pollakiuria and urinary incontinence or oral sleep inducers, containing tropolone derivatives
CA 2485869 A1 · Owner: Koga, Ichiro · Inventors: Koga, Ichiro; Yamazaki, Hiroko; Matsumoto, Shin-Ichi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Oral therapeutic or preventive drugs for pollakiuria and urinary incontinence or oral sleep inducers, which contain as the active ingredient compounds represented by the general formula (I) or pharmacologically acceptable salts thereof and exhibit excellent peroral absorbability: (I) wherein R1 is hydrogen or linear or branched alkyl having 1 to 3 carbon atoms; R2 is hydrogen or isopropyl; and Ar is an unsubstituted heteroaromatic group having two heteroatoms.
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 May 14, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 14, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 14, 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.