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:
Jun. 08, 1982
Filed:
Apr. 18, 1980
Applicant:
Inventors:
Andree Bugaut, Boulogne, FR;
Majdi M Shahin, Paris, FR;
Jean-Jacques H Vandenbossche, Aulray-Sous-Bois, FR;
Gregoire Kalopissis, Neuilly sur Seine, FR;
Assignee:
Societe Anonyme dite: L'Oreal, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ;
U.S. Cl.
CPC ...
8407 ; 8406 ; 8408 ; 8409 ; 8410 ; 8414 ; 8416 ; 8421 ; 8423 ; 564347 ; 564353 ; 564354 ;
Abstract
Novel meta-phenylenediamines are provided for use as couplers with dye bases in hair dye compositions. These meta-phenylenediamines have the formula: ##STR1## in which n is 2, 3 or 4. Their acid addition salts may also be used.