Method and means for prevention and treatment of secondary cataract
CA 2200481 C · Owner: Pharmacia & Upjohn Ab · Inventors: Stjernschantz, Johan; Resul, Bahram
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method for treatment or prevention of secondary cataract which comprises contacting the surface of the eye with an effective amount of a therapeutically active and physiologically acceptable prostaglandin of type A or J, especially PGA2 or PGJ2 or an analogue or derivative thereof.
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 19, 1995 and granted September 10, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 19, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 19, 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.
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.