Granted Patent
Utility
US 5,196,889 · App. 07/830,828
Apparatus for applying an electrical bias to a shell of a magnetic brush
Inventors:
Robert J. Ronnenberg, Satyan R. Kalyandurg, John M. Fiske
Patented Case
View Patent ↗
Granted: Mar 23, 1993
Filed: Feb 4, 1992
Inventors
Robert J. Ronnenberg
Satyan R. Kalyandurg
John M. Fiske
Assignee (at issue)
EASTMAN KODAK COMPANY
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.