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:
Dec. 25, 2007
Filed:
Jul. 04, 2003
Herve Burgaud, Damartin en Goele, FR;
Herve David, Joinville le Pont, FR;
Rui Pereira, St. Georges, FR;
Beatrice Belcour-castro, Joinville le Pont, FR;
Herve Burgaud, Damartin en Goele, FR;
Herve David, Joinville le Pont, FR;
Rui Pereira, St. Georges, FR;
Beatrice Belcour-Castro, Joinville le Pont, FR;
L'Oreal, Paris, FR;
Abstract
The invention concerns the use as direct dyeing agent of at least one tetra-azapentamethine compound, a dyeing composition comprising at least such a compound, as well as a method for dyeing keratinous fibers, in particular human keratinous fibers and more particularly hair, which consists in applying at least one composition comprising such a compound. The composition also concerns tetra-azapentamethine compounds of formula (I). The invention further concerns a method for bleaching such compounds, as well as bleaching keratinous fibers previously dyed therewith.