Expired Canadian patentCanada
Pharmaceutical formulation of the telmisartan sodium salt
CA 2524091 C · Owner: Kohlrausch, Anja · Inventors: Kohlrausch, Anja
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 invention relates to a pharmaceutical formulation of the crystalline sodium , salt of 4'-2-n-propyl-4-methyl-6-(1-methylbenzimidazol-2-yl)benzimidazol-1ylmethylbiphenyl-2-carboxylic , acid (telmisartan) and to processes for the , preparation thereof.
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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 April 27, 2004 and granted February 21, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 27, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 27, 2026.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 27, 2004
GrantedFebruary 21, 2012
Term endedApril 27, 2024
Patent numberCA 2524091 C
Classification (IPC)A61K31/41 +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.