Bleaching and dyeing; fluid treatment and chemical modification – Dyeing involving animal-derived natural fiber material ,... – Hair dyeing
Reexamination Certificate
2005-04-26
2005-04-26
Einsmann, Margaret (Department: 1751)
Bleaching and dyeing; fluid treatment and chemical modification
Dyeing involving animal-derived natural fiber material ,...
Hair dyeing
C008S407000, C008S437000, C008S451000, C008S463000, C008S466000, C008S570000, C008S573000, C008S574000, C548S318100, C548S321100, C548S400000, C546S184000
Reexamination Certificate
active
06884266
ABSTRACT:
The invention concerns a novel dyeing composition for dyeing keratinous fibers, in particular human hair, comprising a cationic azo dye of formula (I): W1—N═N—W2—NW3W4, and the dyeing method using said composition and the novel compounds of formula (I).
REFERENCES:
patent: 5879412 (1999-03-01), Rondeau et al.
patent: 5919273 (1999-07-01), Rondeau et al.
patent: 0 850 636 (1998-07-01), None
patent: 0 852 135 (1998-07-01), None
patent: 2 378 069 (1978-08-01), None
English language Derwent Abstract of FR 2 378 069, Aug. 18, 1978.
Leduc Madeleine
Vidal Laurent
"L'Oreal"
Einsmann Margaret
Elhilo Eisa
Finnegan Henderson Farabow Garrett & Dunner L.L.P.
LandOfFree
Dyeing composition for dyeing keratinous fibers comprising a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dyeing composition for dyeing keratinous fibers comprising a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dyeing composition for dyeing keratinous fibers comprising a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3409828