Expired Canadian patentCanada
Antiulcer 1-benzimidazolyl-pyridinium salt and pharmacological composition containing the same
CA 1339369 C · Owner: Miyazawa, Shuhei · Inventors: Fujimoto, Masatoshi; Ueda, Norihiro; Souda, Shigeru
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Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pyridinium salt is useful as an antiulcer and is defined by the following formula. It includes a sulphenamide compound and a pyridinium compound. J is benzoimidazole, K is -S- or -SSR, Z is hydroxy or oxyalkyl.
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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 August 26, 1997. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 26, 2014.
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FiledMay 12, 1989
GrantedAugust 26, 1997
Term endedAugust 26, 2014
Patent numberCA 1339369 C
Classification (IPC)C07D401/04 +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.