Granted Patent
Utility
US 4,477,869 · App. 06/489,503
Pulsed aperture for an electrostatic ink jet system
Inventor:
Robert Rudd
Patented Case
View Patent ↗
Granted: Oct 16, 1984
Filed: Apr 28, 1983
Inventor
Robert Rudd
Assignee (at issue)
Burroughs, Inc.
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.