Pharmaceutical composition containing 1-mono- or bis (trifluoromethyl)-2-pyridinyl piperazines
CA 2003665 C · Owner: Akzo N.V. · Inventors: Carlier, Patrick; Poisson, Claude; Monteil, Andre
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Pharmaceutical composition which is useful as a medicinal product, in particular for the treatment of disorders of the central nervous system, characterized in that it contains customary pharmaceutical excipients and at, least one of the compounds of formula (see fig. I), in which the trifluoromethyl substituent is at the 4-position, at the 5-position, or at 4- and 5-positions of the pyridinyl ring, and the substituent R denotes either hydrogen or a halogen, such as chlorine at position(s), of the pyridinyl ring not occupied by CF3 and its, pharmaceutically acceptable salts.
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 November 23, 1989 and granted April 6, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 23, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 23, 2011.
- 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.