Granted Patent
Utility
US 4,998,119 · App. 07/451,319
Multiplexed light emitting diode printhead
Inventors:
William David Collins, III, Steven Paolini, John Uebbing
Patented Case
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Granted: Mar 5, 1991
Filed: Dec 15, 1989
Inventors
William David Collins, III
Steven Paolini
John Uebbing
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.