Expired Canadian patentCanada
Aqueous risperidone formulations
CA 2194564 C · Owner: Francois, Marc Karel Jozef · Inventors: Dries, Willy Maria Albert Carlo; Francois, Marc Karel Jozef
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is concerned with physicochemically stable aqueous solutions of risperidone for oral and parenteral administration; processes for preparing such formulations.
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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 July 4, 1995 and granted January 27, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 4, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 4, 2017.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 4, 1995
GrantedJanuary 27, 1998
Term endedJuly 4, 2015
Patent numberCA 2194564 C
Classification (IPC)A61K31/50 +2 more
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.