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:
Aug. 05, 2008
Filed:
Jun. 11, 2002
Applicant:
Laurent Vidal, Paris, FR;
Inventor:
Laurent Vidal, Paris, FR;
Assignee:
L'Oreal, S.A., Paris, FR;
Primary Examiner:
Int. Cl.
CPC ...
A61Q 5/10 (2006.01); C07D 295/00 (2006.01); C07D 233/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present disclosure relates to a novel dyeing composition for dyeing human keratinous fibers, such as hair, comprising at least one dicationic diazo dye of formula (I):[W—N═N—W—W—(W—W)-]-L   Formula (I)as well as the process for dyeing hair using same. Certain compounds of formula (I) are also disclosed herein.