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:
Oct. 05, 1993
Filed:
Nov. 05, 1990
Applicant:
Inventor:
Massimo Quintini, Bergamo, IT;
Assignee:
Sigma Prodotti Chimici SpA, Milan, IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K / ;
U.S. Cl.
CPC ...
25230123 ; 25230121 ; 252543 ;
Abstract
Solution of a fluorescent whitening agent to be used in the formulation of liquid detergents for hand or machine washing. The solution comprises: