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, 1985
Filed:
Dec. 30, 1981
Applicant:
Inventors:
Wolfgang Brinkwerth, Berg.-Gladbach, DE;
Wolfgang Huffer, Cologne, DE;
Roderich Raue, Leverkusen, DE;
Rudolf Schieder, Huerth, DE;
Helmut Telle, Toronto, CA;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S / ; C09K / ;
U.S. Cl.
CPC ...
25230117 ; 372 39 ; 372 53 ;
Abstract
Fluorescent dyestuffs of the general formula ##STR1## wherein R and R.sup.1 independently of one another represent hydrogen, a salt-forming cation, an alkyl radical with 1 to 16 C atoms or an aryl or aralkyl radical which is optionally substituted by non-chromophoric groups,