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. 10, 2001
Filed:
Aug. 11, 1998
Applicant:
Inventors:
Jeffrey H. Sokol, Pittsford, NY (US);
Edward J. Gutman, Webster, NY (US);
Assignee:
Xerox Corporation, Stamford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/08 ;
U.S. Cl.
CPC ...
G03G 9/08 ;
Abstract
A toner composition comprised of binder, colorant, and a surface additive of a coated silica and wherein said silica possesses a BET surface area, in m,/g of from about 35 to about 65, a bulk density, in grams/liter, of from about 40 to about 60, and wherein the size diameter determined from the BET measurement is from about 20 to about 100 nanometers.