Nasal preparations
CA 2375702 A1 · Owner: Misaki, Masafumi · Inventors: Takada, Shigeyuki; Fukumoto, Shoji; Shiraishi, Mitsuru
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Pernasal preparations characterized by containing a compound of general formula (I) having an Na/H exchange inhibiting activity or a salt thereof exhibit excellent bioabsorbability and an Na/H exchange inhibiting activity superior to those of peroral preparations thus being useful as preventive , and/or therapeutic agents for ischemic heart diseases such as myocardial infarct and arrhythmia: wherein A is an optionally substituted five- or sixmembered aromatic heterocycle; B is an optionally substituted five- or sixmembered aromatic homo- or hetero-cycle; R1 is hydrogen hydroxyl, or lower , alkyl; and n is 0 or 1.
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 June 1, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 1, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 1, 2022.
- 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.