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:
Feb. 07, 1984
Filed:
Mar. 26, 1982
Applicant:
Inventor:
Virgil W Westdale, Barrington, IL (US);
Assignee:
AM International, Inc., Chicago, IL (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
4301066 ; 430109 ; 430111 ; 430903 ;
Abstract
A single component electrophotographic developer composition is disclosed comprising a low melt viscosity polyamide resin and a magnetic oxide component of such particle size as to greatly enhance the development of low background high density images. Highly conductive carbon may be added to control the resistivity of the developer particles.