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:
Oct. 18, 1983
Filed:
Feb. 03, 1976
Applicant:
Inventors:
Masakichi Yahagi, Tokyo, JP;
Shoichi Horiuchi, Fujimi, JP;
Takahumi Toyama, Tokyo, JP;
Akio Kashiwagi, Ageo, JP;
Teruo Suzuki, Tokyo, JP;
Tetsuo Igaki, Kawagoe, JP;
Kazuyuki Horisawa, Tokyo, JP;
Mituhiro Shoji, Tokyo, JP;
Assignee:
Shin Nisso Kako Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
548407 ; 544 70 ; 546 15 ; 549224 ; 549225 ; 549226 ;
Abstract
Certain 3-substituted amino-7-substituted fluoran derivatives useful as color recording materials.