Granted Patent
Utility
US 6,359,378 · App. 09/772,041
Amplifier having multilayer carbon-based field emission cathode
Inventors:
Donald E. Patterson, Keith D. Jamison
Patented Case
View Patent ↗
Granted: Mar 19, 2002
Filed: Jan 29, 2001
Inventors
Donald E. Patterson
Keith D. Jamison
Assignee (at issue)
Extreme Devices, Inc.
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.