Kappa opioid receptor ligands
CA 2433603 C · Owner: Carroll, F. Ivy · Inventors: Mascarella, S. Wayne; Carroll, F. Ivy; Thomas, James B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Kappa opioid receptor antagonists are provided that yield significant improvements in functional , binding assays to kappa opioid receptors relative to nor-BNI and the use of , these antagonists in treatment of disease states that are ameliorated by binding of the kappa opioid receptor such as , heroin or cocaine addictions. These kappa opioid receptors have the formula: (see formula 1).
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 January 7, 2002 and granted March 22, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 7, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 7, 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.
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.