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. 22, 1977
Filed:
Aug. 14, 1974
Applicant:
Inventors:
Terence Frederick Child, Wirral, EN;
James Francis Davies, Wirral, EN;
Assignee:
Lever Brothers Company, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
C11D / ;
U.S. Cl.
CPC ...
252140 ; 252160 ; 2523635 ; 252539 ; 252550 ; 252558 ; 252D / ;
Abstract
Finely divided calcium carbonate, which is intended for use in detergent compositions containing sodium carbonate as the detergency builder, is treated before it has been dried with a water-soluble dispersing aid. This decreases the tendency of the calcium carbonate particles to aggregate and subsequently be deposited on fabrics in the washing process.