Granted Patent
Utility
US 4,875,062 · App. 07/290,657
Ion projection print head
Inventor:
David M. Rakov
Patented Case
View Patent ↗
Granted: Oct 17, 1989
Filed: Dec 27, 1988
Inventor
David M. Rakov
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.