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:
Jun. 16, 1992
Filed:
Oct. 22, 1990
Applicant:
Inventors:
Michael Schmitt, Weinheim, DE;
Bernhard Albert, Maxdorf, DE;
Sibylle Brosius, Ludwigshafen, DE;
Klaus D Schomann, Ludwigshafen, DE;
Harald Kuppelmaier, Goennheim, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03C / ; C07D / ; C07C / ;
U.S. Cl.
CPC ...
430270 ; 430495 ; 430945 ; 546189 ; 558303 ; 558426 ; 558428 ; 558433 ; 560 36 ; 560 42 ; 564152 ; 564158 ; 564307 ; 549510 ; 549511 ;
Abstract
Amido-containing azulene-aquaric acid dyes of the formula ##STR1## where L is C.sub.1 -C.sub.12 -alkylene which may be substituted by phenyl,
Schmitt, Michael. (1992). Amido-containing azulene squaric acid dyes, intermediates therefor and (U.S. Patent No. 5122435). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5122435
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile