Granted Patent
Utility
US 5,142,193 · App. 07/546,578
Photonic cathode ray tube
Inventors:
James Chang, James Jay Fanning
Patented Case
View Patent ↗
Granted: Aug 25, 1992
Filed: Jun 29, 1990
Inventors
James Chang
James Jay Fanning
Assignee (at issue)
Kaman Sciences 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.