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.:

US 6908492 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 21, 2005

Filed:

Jan. 07, 2004
Applicants:

Gisela Umbricht, Marly, CH;

Hans-juergen Braun, Ueberstorf, CH;

Sylviane Oberson, Ecuvillens, CH;

Catherine Mueller, Marly, CH;

Inventors:

Gisela Umbricht, Marly, CH;

Hans-Juergen Braun, Ueberstorf, CH;

Sylviane Oberson, Ecuvillens, CH;

Catherine Mueller, Marly, CH;

Assignee:

Wella Aktiengesellschaft, Darmstadt, DE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K007/13 ;
U.S. Cl.
CPC ...
Abstract

The new 7-nitro-2,1,3-benzoxadiazole compounds and 7-nitro-2,1,3-benzthiadiazole compounds of formula (I) are:Dyeing agents for keratin fibers, containing the compounds of formula (I), and methods of dyeing hair with these dyeing agents are described.


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