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. 04, 1989
Filed:
Jan. 12, 1988
Applicant:
Inventors:
Udo Hoppe, Hamburg, DE;
Klaus Korbacher, Hamburg-Schenefeld, DE;
Karl-Heinz Schrader, Holzminden, DE;
Assignee:
Beiersdorf AG, Hamburg, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ;
U.S. Cl.
CPC ...
8406 ; 8407 ; 8408 ;
Abstract
A hair colorant based oxidative dyes, in which colorant the alkaline pH necessary for coloring is not produced until during application by enzymatic methods, and a method of coloring hair.