Alkyl derivatives of trazodone with cns activity
CA 2128202 C · Owner: Baiocchi, Leandro · Inventors: Baiocchi, Leandro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Alkyl derivatives of trazodone endowed with pharmacological activity pharmaceutical compositions containing them process for preparing them and, intermediate compounds useful in their preparation the Alkyl derivatives of , trazodone, having the formula: (see formula I), wherein only one of R R', R"' is 1-3 C alkyl and the others are H and the , acid addition, salts thereof with physiological acceptable organic or inorganic 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 January 14, 1993 and granted January 23, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 14, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 14, 2015.
- 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.