Anti-allergic pharmaceutical composition for ophthalmic topical administration
CA 2123367 C · Owner: Taiho Pharmaceutical Co. Ltd. · Inventors: Ogawa, Takahiro; Ohmori, Hitoshi; Okumura, Atsushi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides an anti-allergic pharmaceutical composition for ophthalmic topical administration comprising an IgE antibody production inhibitor as an active ingredient. The present invention also provides a process for producing an anti-allergic pharmaceutical composition for ophthalmic topical administration, which comprises mixing an IgE antibody production inhibitor with a pharmaceutically acceptable carrier, excipient or diluent.
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 11, 1994 and granted April 14, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 11, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 11, 2016.
- 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.