Granted Patent
Utility
US 4,712,906 · App. 07/007,036
Electrostatographic apparatus having a transfer drum
Inventors:
Rose M. Bothner, James L. Butler
Patented Case
View Patent ↗
Granted: Dec 15, 1987
Filed: Jan 27, 1987
Inventors
Rose M. Bothner
James L. Butler
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.