Expired Canadian patentCanada
Diselenobis benzoic acid amides of primary heterocyclic amines, process for producing the same and pharmaceutical compounds comprisingthe same
CA 1303038 C · Owner: Romer, Axel · Inventors: Welter, Andre; Parnham, Michael John; Romer, Axel
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Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, The present invention is related to new diselenobis benzoic acid amides of primary heterocyclic amines of the general formula I, I, process for producing the same and pharmaceutical compounds comprising the same.
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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 June 9, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 9, 2009.
- 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 30, 1987
GrantedJune 9, 1992
Term endedJune 9, 2009
Patent numberCA 1303038 C
Classification (IPC)C07D213/75 +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.