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. 18, 1997
Filed:
Dec. 13, 1995
Applicant:
Inventors:
Carmine DeLuca, Peekskill, NY (US);
William P Kurtenbach, Peekskill, NY (US);
Assignee:
The Mearl Corporation, Ossining, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
106415 ; 106417 ; 106436 ;
Abstract
A nacreous pigment is prepared by subjecting a metal oxide-coated mica nacreous pigment to an acid extractive dissolution using a combination of a mineral acid and phosphoric acid followed by an extractive dissolution using an alkali.