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. 07, 1998
Filed:
May. 10, 1996
Applicant:
Inventors:
Karen Hohenstein, Culver City, CA (US);
George Andrassy, Walnut, CA (US);
Assignee:
Dep Corporation, Rancho Dominguez, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
A45D / ;
U.S. Cl.
CPC ...
132204 ;
Abstract
A process and composition for waving or straightening hair by treating the hair with an acidic reducing solution containing an amine sulfite, having a pH in the range of 5.0 to 6.95, followed by applying an alkaline oxidizing solution containing hydrogen peroxide, and having a pH in the range of 7.50 to 10.0 The process and composition solves certain problems which are commonly encountered in waving or straightening products, such as loss of hair color, and hair damage.