Guanidine carboxylic acid esters, processes for their preparation and pharmaceutical preparations containing these compounds
CA 1304086 C · Owner: Heumann Pharma Gmbh & Co. · Inventors: Engler, Heidrun; Schunack, Walter; Buschauer, Armin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
New guanidine carboxylic acid esters corresponding to the general formula I, (I), and a process for the preparation of these compounds are described. The compounds according to the invention are H2-agonists optionally having an additional H1antagonistic component. They are distinguished by their improved oral activity. The use of the above-mentioned guanidine carboxylic acid esters and of pharmaceutical preparations containing these esters is also described.
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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 23, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 23, 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.
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.