Granted Patent
Utility
US 6,624,839 · App. 09/745,042
Integral organic light emitting diode printhead utilizing color filters
Inventors:
Russell Gaudiana, Richard G. Egan
Patented Case
View Patent ↗
Granted: Sep 23, 2003
Filed: Dec 20, 2000
Inventors
Russell Gaudiana
Richard G. Egan
Assignee (at issue)
Polaroid Corporation
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.