Azabicyclo arylacetylene and arylenyne oximes as cholinergic agents and methods of treatment
CA 2115443 C · Owner: Moos, Walter H. · Inventors: Pavia, Michael R.; Moos, Walter H.; Thomas, Anthony J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Pharmaceutically useful nitrogen containing cyclic oxime substituted compounds which are arylacetylene and arylenyne, azabicyclo (2.2.1 oximes of formula (I) which are useful for alleviating pain and for treating cognitive decline are described; pharmaceutical compositions and a method of manufacture are also described. In formula (I), R is selected from the group (IIa) and (IIb).
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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 October 9, 1992 and granted May 13, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 9, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 9, 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.
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.