Derivatives of ethanolamine, their preparation, and the pharmaceutical compositions containing them
CA 2083475 C · Owner: Lacour, Francoise · Inventors: Wierzbicki, Michel; Lacour, Francoise; Duhault, Jacques
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Novel derivatives of ethanolamine benzoate that can be used as medication and having the formula: wherein R represents : a) either a radical of the formula: wherein: - R' represents a hydrogen atom or alkyl radical containing 1 to 5 carbon atoms in a straight or branched chain - R1 et R2, identical or different, each represent a hydrogen atom or alkyl or alkoxy radical each having 1 to 5 carbon atoms in a straight or branched chain and - m and n, identical or different, each represent 1 2 or 3; b) or a fluorenyl radical having the formula: in racemic and enantiomeric forms. These novel derivatives and their physiologically tolerable salts can be used in therapeutic applications …
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 20, 1992 and granted September 8, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 20, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 20, 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.