Preparation process for an aqueous pharmaceutical solution of an active principle constituted by an organic acid
CA 1292944 C · Owner: Laboratoires Chauvin-Blache · Inventors: Coquelet, Claude; Tournoux, Alain; Maurin, Florence
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Company named: Laboratoires CHAUVIN-BLACHE Inventors: - MAURIN Florence, - COQUELET Claude - TOURNOUX Alain, Preparation process for an aqueous pharmaceutical solution of an active principle constituted by an organic acid ABSTRACT, The subject of the invention is a preparation process for an aqueous pharmaceutical solution of an active principle constituted by an organic acid, characterized in that: a) the organic acid is dissolved in a first aqueous solution containing a sufficient quantity of at least a fraction of the basic part of a buffer mixture, b) this solution is lyophilized in order to obtain a product in a dry state and, c) at the time of use the product in a dry state is …
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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
- Granted December 10, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 10, 2008.
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.