Granted Patent
Utility
US 4,699,495 · App. 06/931,483
Electrographic development apparatus having coordinated gate mechanism and wiper
Inventor:
Thomas K. Hilbert
Patented Case
View Patent ↗
Granted: Oct 13, 1987
Filed: Nov 17, 1986
Inventor
Thomas K. Hilbert
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.