Stabilized composition comprising a benzimidazole type compound
CA 2298823 C · Owner: Ukai, Koji · Inventors: Sugaya, Yukiko; Suzuki, Yasuyuki; Fujioka, Satoshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a chemically stable pharmaceutical preparation of a benzimidazole type compound. That is, the present invention relates to a composition comprising at least one substance selected from sodium carbonate, potassium carbonate, sodium hydroxide potassium , hydroxide, aminoalkyl methaacrylate copolymer E arginine , aspartate, hydroxypropyl cellulose and crospovidone incorporated into a benzimidazole type compound or an alkali metal salt 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 20, 1999 and granted June 7, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 20, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 20, 2021.
- 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.