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:
Jul. 12, 2005
Filed:
Aug. 22, 2000
Applicants:
Mustafa Akram, Hamburg, DE;
Rolf-werner Haubold, Hamburg, DE;
Inventors:
Mustafa Akram, Hamburg, DE;
Rolf-Werner Haubold, Hamburg, DE;
Assignee:
Hans Schwarzkopf GmbH & Co. KG, Hamburg, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A11K007/13 ;
U.S. Cl.
CPC ...
Abstract
A method for coloring keratin fibers is provided that includes at least two steps. In one step, the keratin fibers are treated with a pretreatment composition containing at least one substantive dye. In another step, the keratin fibers are treated with a composition containing at least one synthetic dye or synthetic dye precursor after applying the pretreatment composition.