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:
Dec. 27, 1994
Filed:
Sep. 24, 1993
Applicant:
Inventors:
Joseph Iannicelli, Jekyll Island, GA (US);
Joseph E Pechin, Brunswick, GA (US);
Assignee:
Aquafine Corporation, Brunswick, GA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
501146 ; 501147 ; 106486 ; 106488 ; 1621818 ; 423156 ;
Abstract
A process for increasing the brightness of Minnesota kaolin clay containing chlorite and siderite mineral impurities comprising treating the clay with a strong mineral acid preferably in combination with magnetic separation.