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:
Mar. 13, 1990
Filed:
Aug. 23, 1988
Applicant:
Inventors:
Valdis Mikelsons, Mendota Heights, MN (US);
Lawrence M Lucking, May Township, Washington County, MN (US);
Gregory L Zwadlo, Ellsworth, WI (US);
Assignee:
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
118659 ; 355256 ;
Abstract
A development apparatus is provided with a flat or concavely curved, endless belt development electrode to conform to a flat or cylindrical electrographic record member, respectively. Such a configuration provides increased toned quality as compared to conventional cylindrical development electrodes.