Remedies/preventives for frequent urination/urinary incontinence and tropone derivatives
CA 2294312 A1 · Owner: Okada, Atsushi · Inventors: Okada, Atsushi; Koga, Ichiro; Narita, Kazuhisa
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Remedies/preventives for frequent urination/urinary incontinence which contain as the active ingredient compounds having a tropone skeleton or pharmacologically acceptable salts thereof; and novel compounds having the tropone skeleton. The compounds having a tropone skeleton and showing the above pharmacological effects are those represented by for example, general , formula (1), wherein R1 and R2 represent each hydrogen lower alkyl, etc.; R3 , represents -OR or -NR2; R4 R5 and R12 represent each hydrogen or lower alkyl; X represents nitrogen or CH; Z represents -CHAr2 optionally substituted , phenyl, etc.; and m is 1 or 2. These compounds are novel ones excluding those wherein Z is …
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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 June 26, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 26, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 26, 2020.
- 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.