Granted Patent
Utility
US 5,049,901 · App. 07/546,902
Light modulator using large area light sources
Inventor:
Daniel Gelbart
Patented Case
View Patent ↗
Granted: Sep 17, 1991
Filed: Jul 2, 1990
Inventor
Daniel Gelbart
Assignee (at issue)
Creo Products Limited
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.