Expired Canadian patentCanada
Inhibitors of cathepsin g and elastase for preventing connective tissue degradation
CA 2109516 C · Owner: Merrell Dow Pharmaceuticals Inc. · Inventors: Bey, Philippe; Mehdi, Shujaath; Janusz, Michael J.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Novel compounds which are chemically linked inhibitors of the proteases Elastase and Cathepsin G prevent connective tissue degradation associated with neutrophil induced inflammatory disease.
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 21, 1992 and granted February 11, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 21, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 21, 2014.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 21, 1992
GrantedFebruary 11, 2003
Term endedApril 21, 2012
Patent numberCA 2109516 C
Classification (IPC)C07K5/08 +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.