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.:

US 6744996 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 01, 2004

Filed:

Oct. 31, 2002
Applicant:
Inventor:

Robert E. Brenner, New Richmond, WI (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 1/510 ;
U.S. Cl.
CPC ...
G03G 1/510 ;
Abstract

A method of determining when liquid electrophotographic toner has been depleted using a means of detecting signals indicating the conductivity provided by toner solids in a liquid carrier and determining their concentration in relationship to the liquid dielectric carrier solvent.


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