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:
Apr. 13, 2004
Filed:
Mar. 13, 2002
Applicant:
Inventors:
Ken Stephen Schermacher, Chadds Ford, PA (US);
Allan Blase Joseph Rodrigues, Bloomfield Hills, MI (US);
Anthony Joseph Martino, West Chester, PA (US);
Douglas E. Spahr, Wilmington, DE (US);
Timothy Aaron Snyder, Voorhees, NJ (US);
Assignee:
E. I. du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J 3/46 ; C09D 1/100 ;
U.S. Cl.
CPC ...
G01J 3/46 ; C09D 1/100 ;
Abstract
A rapid process for making transparent tints that match the color and tinting strength of a standard tint. The process involves the use of a faster and more accurate shading technique that utilizes the light transmittance properties of the tints in the wet over the visible spectrum and calculates therefrom the amount of components required to bring the tint within an acceptable match to the standard.