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, 1993
Filed:
Oct. 25, 1991
Applicant:
Inventors:
Francoise M Winnik, Toronto, CA;
William Riske, Burlington, CA;
Anthony R Davidson, Agincourt, CA;
Paul J Gerroir, Oakville, CA;
Richard P Veregin, Mississauga, CA;
Assignee:
Xerox Corporation, Stamford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
4301066 ; 430110 ;
Abstract
A toner composition comprised of resin particles, pigment particles, an optional charge enhancing additive component, or components, and a surface additive, or additives comprised of a metal oxide containing a coating thereover of a surfactant.