Granted Patent
Utility
US 5,291,259 · App. 07/975,449
Image forming apparatus having toner cleaning device
Inventors:
Richard A. Weitzel, Thomas K. Hilbert, Bruce J. Rubin
Patented Case
View Patent ↗
Granted: Mar 1, 1994
Filed: Nov 12, 1992
Inventors
Richard A. Weitzel
Thomas K. Hilbert
Bruce J. Rubin
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.