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:
Nov. 05, 1991
Filed:
Jan. 11, 1990
Applicant:
Inventors:
Yuji Nomoto, Shizuoka, JP;
Haruki Takai, Shizuoka, JP;
Tetsuji Ohno, Shizuoka, JP;
Kazuhiro Kubo, Shizuoka, JP;
Assignee:
Kyowa Hakko Kogyo Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; A61K / ;
U.S. Cl.
CPC ...
514252 ; 514218 ; 5142358 ; 544239 ; 540575 ;
Abstract
Compounds of the formula ##STR1## wherein R.sub.3 is H or alkyl, Q.sub.1 and Q.sub.2 are independently hydrogen, alkyl, hydroxyl, alkoxyl, amino, mono or di alkylamino, nitro or halo or pharmaceutically acceptable salts are useful as cardiotonics.
Nomoto, Yuji. (1991). Quinazoline-substituted pyridazinone derivatives having cardiotonic (U.S. Patent No. 5063227). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5063227
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile