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Expired Canadian patentCanada

Ethanolamine benzoate derivatives; process for preparing the same and pharmaceutical compositions containing them

CA 2071093 C · Owner: Lacour, Francoise · Inventors: Hugon, Pierre; Duhault, Jacques; Wierzbicki, Michel

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Novel compounds of ethanolamine benzoate that can be used as medications and having the formula: wherein R is as defined in the description in racemic and enantiomeric forms. The novel compounds and their physiologically tolerable salts can be used in therapeutic applications.

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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 June 12, 1992 and granted August 4, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 12, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 12, 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.
FiledJune 12, 1992
GrantedAugust 4, 1998
Term endedJune 12, 2012
Patent numberCA 2071093 C
Classification (IPC)C07C233/51 +2 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedJune 12, 1992Patent grantedAug 4, 1998Term endedJune 12, 2012

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.