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. 17, 1981
Filed:
Sep. 10, 1979
Applicant:
Inventors:
Rudolf Schieder, Huerth, DE;
Helmut Telle, Cologne, DE;
Roderich Raue, Leverkusen, DE;
Wolfgang Brinkwerth, Bergisch-Gladbach, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; D06P / ;
U.S. Cl.
CPC ...
2605 / ; 2604 / ; 2604 / ; 2604 / ; 2604 / ; 2604 / ; 2604 / ; 2604 / ; 260508 ; 260509 ; 260510 ; 2605 / ; 560 14 ; 8648 ; 2605 / ;
Abstract
Fluorescent dyestuffs of the formula ##STR1## wherein: R.sub.1 and R.sub.2 independently of one another represent hydrogen, a salt-forming cation, an alkyl radical with 1 to 8 carbon atoms or an aralkyl radical which is optionally substituted by non-chromophoric groups,
Quick Actions:
Schieder, Rudolf. (1981). Fluorescent dyestuffs (U.S. Patent No. 4301091). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4301091
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile