Granted Patent
Utility
US 5,729,244 · App. 08/416,079
Field emission device with microchannel gain element
Inventor:
Harry F. Lockwood
Patented Case
View Patent ↗
Granted: Mar 17, 1998
Filed: Apr 4, 1995
Inventor
Harry F. Lockwood
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.