Diaminomaleonitrile derivatives and processes for preparing the same
CA 1051926 A · Owner: Sagami Chemical Research Center · Inventors: Ohtsuka, Yozo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Diaminomaleonitrile Derivativces and Processes for Preparing the Same, Abstract of the Disclosure N-.alpha.-cyanoalkyl compounds of diaminomaleonitrile represented by the formula (I), (I), wherein R represents a straight or branched chain alkyl group having 1 to 4 carbon atoms or a phenyl group useful for producing dihydropyrazine compounds; iminonitrile compounds of diaminomaleonitrile useful as antimicrobial agents and intermediates represented by the formula (II), ( II) wherein R is as defined above; and processes for preparing 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 April 3, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 3, 1996.
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Timeline
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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.