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:
Jan. 05, 2010
Filed:
Sep. 12, 2007
Applicants:
Laurent Vidal, Paris, FR;
Aziz Fadli, Chelles, FR;
Inventors:
Laurent Vidal, Paris, FR;
Aziz Fadli, Chelles, FR;
Assignee:
L'Oreal S.A., Paris, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D 231/54 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed herein are a composition for dyeing keratinous fibers, for example, human keratinous fibers such as hair, comprising at least one oxidation base chosen from diamino-N,N-dihydropyrazolone derivative and a method using the composition. Further disclosed herein are amino-N,N-dihydropyrazolone derivatives and the addition salts thereof and diamino-N,N-dihydropyrazolone derivatives and the addition salts thereof, as well as the methods for preparing these compounds.