Granted Patent
Utility
US 4,862,224 · App. 07/177,292
Cleaning device for electrostatic imaging apparatus
Inventor:
Wayne W. Ku
Patented Case
View Patent ↗
Granted: Aug 29, 1989
Filed: Apr 4, 1988
Inventor
Wayne W. Ku
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.