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. 17, 1979
Filed:
Aug. 30, 1977
Applicant:
Inventors:
Ihor Kulbida, Fairport, NY (US);
Robert A Burkett, Fairport, NY (US);
Thomas Meagher, Webster, NY (US);
Assignee:
Xerox Corporation, Stamford, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
118657 ; 118647 ;
Abstract
A reproduction machine for producing copies incorporating a control for varying, infinitely over a given range copy shading. The control operates to change the fixed bias potential applied to the magnetic brush type developing rolls by providing through a variable voltage circuit, varying biasing potentials.
Kulbida, Ihor. (1979). Xerographic machine with infinitely variable developer bias (U.S. Patent No. 4149487). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4149487
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile