Prophylactic and therapeutic medicaments for ophthalmic diseases
CA 2383971 A1 · Owner: Tokushige, Hideki · Inventors: Naka, Hiroaki; Kawabata, Kazuhito; Tokushige, Hideki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Preventive and therapeutic agents for eye diseases particularly inflammatory , eye diseases and corneal ulcer containing as the active ingredient the compound of formula (I), pharmacologically acceptable salts thereof or , hydrates of both.
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 September 5, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 5, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 5, 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.