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:
Apr. 29, 1980
Filed:
Nov. 21, 1977
Applicant:
Inventors:
Seiji Ikegami, Osaka, JP;
Yoshihiro Hatano, Osaka, JP;
Assignee:
Yamamoto Kagaku Gosei Co., Ltd., Osaka, JP;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
546 89 ; 544 14 ; 544126 ; 544361 ; 544344 ; 546170 ; 8 1 / ;
Abstract
Lactone electron donative color-forming agents of quinoline-carboxylic acid are disclosed having the general formulae (I) and (II) ##STR1## wherein A and B represent a variety of chemical moieties, X represents halo- or nitro- and n.sup.1 is an integer of 0-4. The color-forming agents are useful in recording materials of the pressure-sensitive and heat-sensitive varieties, and the like.
Quick Actions:
Ikegami, Seiji. (1980). Lactones of quinoline carboxylic acids (U.S. Patent No. 4200751). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4200751
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile