Expired Canadian patentCanada
Heteroaryl ureas containing nitrogen hetero-atoms as p38 kinase inhibitors
CA 2443952 C · Owner: Dumas, Jacques · Inventors: Gunn, David E.; Monahan, Mary-Katherine; Sibley, Robert N.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to the use of a group of heteroaryl ureas containing nitrogen in treating p38 mediated diseases and pharmaceutical compositions , for use in such therapy.
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 17, 2002 and granted May 24, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 17, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 17, 2024.
- 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 17, 2002
GrantedMay 24, 2011
Term endedApril 17, 2022
Patent numberCA 2443952 C
Classification (IPC)C07D213/75 +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.