Granted Patent
Utility
US 4,724,355 · App. 06/877,901
Backside disc flush for light valve projector
Inventor:
Howard E. Towlson
Patented Case
View Patent ↗
Granted: Feb 9, 1988
Filed: Jun 24, 1986
Inventor
Howard E. Towlson
Assignee (at issue)
General Electric 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.