Expired Canadian patentCanada
Compositions for treatment of glaucoma comprising pilocarpine and a beta-blocker
CA 2181929 C · Owner: Ali, Yusuf · Inventors: Ali, Yusuf; Jani, Rajni; Mccarty, George R.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Compositions for controlling glaucoma and ocular hypertension are disclosed. These compositions comprise pilocarpine a beta-, blocker such as betaxolol, an ion exchange resin and a polyanionic polymer such as carbomers.
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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 January 24, 1995 and granted November 3, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 24, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 24, 2017.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 24, 1995
GrantedNovember 3, 1998
Term endedJanuary 24, 2015
Patent numberCA 2181929 C
Classification (IPC)A61K31/41 +2 more
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.