The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 06, 1994
Filed:
Jul. 26, 1993
Applicant:
Inventor:
Ward H Oliver, Baton Rouge, LA (US);
Assignee:
Ciba-Geigy Corporation, Ardsley, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
558375 ; 558453 ;
Abstract
1-Amino-1-cyanamido-2,2-dicyanoethylene, sodium salt is prepared by a process which comprises reacting malononitrile with sodium dicyanamide at an elevated temperature and in the presence of an aprotic, dipolar solvent. The subject compound is useful as an intermediate to prepare substituted pyrimidines.
Oliver, Ward. (1994). Preparation of 1-amino-cyan-amido-2,2-dicyanoethylene, sodium salt (U.S. Patent No. 5344955). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5344955
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile