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:
May. 12, 2009
Filed:
Jan. 11, 2006
Applicant:
Holger Lautenbach, Rheinfelden, DE;
Inventor:
Holger Lautenbach, Rheinfelden, DE;
Assignee:
Ciba Specialty Chemicals Corporation, Tarrytown, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D06P 1/02 (2006.01); C09B 35/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides 6-azo-5,5'-dihydroxy-7,7′-disulfo-2,2′-dinaphthylamine derivatives, their use as dyes, dyed paper and formulations comprising them.