Granted Patent
Utility
US 6,181,055 · App. 09/169,909
Multilayer carbon-based field emission electron device for high current density applications
Inventors:
Donald E. Patterson, Keith D. Jamison
Patented Case
View Patent ↗
Granted: Jan 30, 2001
Filed: Oct 12, 1998
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.