Expired Canadian patentCanada
Heterocyclic derivatives as opioid receptor modulators
CA 2753371 C · Owner: Janssen Pharmaceutica Nv · Inventors: Kavash, Robert W.; He, Wei; Breslin, Henry Joseph
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 is directed towards compounds of formula (I) as opioid receptor modulators antagonists, and agonists useful for the treatment of opioid modulated disorders such as pain and gastrointestinal disorders.
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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 April 17, 2003 and granted June 30, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 17, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 17, 2025.
- 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, 2003
GrantedJune 30, 2015
Term endedApril 17, 2023
Patent numberCA 2753371 C
Classification (IPC)C07D401/04 +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.