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.

Date of Patent:
Mar. 30, 1999

Filed:

Aug. 26, 1996
Applicant:
Inventors:

Hans Ohlschlager, Bergisch Gladbach, DE;

Wolfgang Schmidt, Bergisch Gladbach, DE;

Dieter Rockser, Leichlingen, DE;

Gustav Tappe, Leverkusen, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
430522 ; 430595 ;
Abstract

Oxonol dyes of the formula I ##STR1## in which R.sub.1, R.sub.2 mean an optionally substituted furyl or thienyl group,


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