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:
Mar. 09, 1993
Filed:
Feb. 12, 1992
Applicant:
Inventor:
Herbert Lapidus, Ridgefield, CT (US);
Assignee:
Combe Incorporated, White Plains, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ;
U.S. Cl.
CPC ...
8405 ; 8435 ; 8622 ; 8626 ;
Abstract
A clear, aqueous, shelf-stable progressive hair coloring composition includes a salt of a metal, a soluble source of sulfur, an amphoteric surfactant and a pH controller that controls the pH of the composition to be within the range of about 7.5 to about 11.0. Preferred metallic salts are salts of lead or bismuth and the preferred sulfur source is sodium thiosufate.