Remedy for obstructive pulmonary diseases
CA 2080130 A1 · Owner: Daiichi Pharmaceutical Co. Ltd. · Inventors: Kitamura, Satoshi; Kobayashi, Jun; Nakahara, Kiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to a preventing and treating agent for obstructive pulmonary diseases which comprises 6-(1-imidazolyl-methyl)-5,6,7,8-tetrahydronaphthalene-2-carboxylic acid or a pharmaceutically acceptable salt thereof as an active ingredient. The active ingredient has a function of inhibiting TXA2 synthetase and is thus highly useful in the treatment of obstructive pulmonary diseases (for example bronchial, asthma, diffuse panbronchiolitis pulmonary emphysema, chronic bronchitis). - 12 -
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 April 9, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 9, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 9, 2013.
- 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.