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:
Jul. 07, 1992
Filed:
Oct. 31, 1990
Applicant:
Inventors:
Masashi Osawa, Chiba, JP;
Tadao Shoji, Chiba, JP;
Sadao Takehara, Chiba, JP;
Hiroshi Ogawa, Chiba, JP;
Toru Fujisawa, Saitama, JP;
Takeshi Kuriyama, Chiba, JP;
Kayoko Nakamura, Chiba, JP;
Assignees:
Dainippon Ink and Chemicals, Inc., Tokyo, JP;
Kawamura Institute of Chemical Research, Sakura, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ; C09K / ;
U.S. Cl.
CPC ...
544335 ; 25229961 ;
Abstract
A 2,5-disubstituted pyrizine derivative and a 2,5-disubstituted pyrimidine derivative of the formula (I): ##STR1## wherein R.sup.1 and R.sup.2 each independently represents a straight-chain or branched alkyl group containing 1 to 20 carbon atoms;
Osawa, Masashi. (1992). 2,5-disubstituted pyrazine derivatives, pyrimidine derivatives, and (U.S. Patent No. 5128472). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5128472
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile