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. 29, 1976
Filed:
Jun. 18, 1973
Applicant:
Inventor:
Hans Schlapfer, Basel, CH;
Assignee:
Ciba-Geigy Corporation, Ardsley, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
2603 / ; 8 1 / ; 25230127 ; 25230129 ; 2602 / ; 2602 / ; 2602 / ; 26029358 ; 2603 / ;
Abstract
The present invention relates to new coumarine derivatives in which coumarine residues substituted in 7-position or 5,6-benzo-coumarine residues are further substituted in 3-position by optionally further substituted 2-phenyl-triazol-4-yl 2- or 1-phenyl-pyrazol-4-yl. The new compounds are useful optical brighteners for organic materials.