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:
Dec. 28, 1982
Filed:
Mar. 19, 1981
Applicant:
Inventor:
Hermann Beecken, Bergisch-Gladbach, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
542455 ; 542430 ; 542431 ; 542453 ; 532458 ; 542465 ; 542466 ; 542467 ;
Abstract
Styryl dyestuffs of the general formula ##STR1## wherein Het represents a pyridinium radical having the structure ##STR2## R and R.sup.1 independently of one another designate lower alkyl or alkenyl groups, which can be substituted by non-ionic radicals,