Granted Patent
Utility
US 5,504,385 · App. 08/299,470
Spaced-gate emission device and method for making same
Inventors:
Sungho Jin, Gregory Peter Kochanski, John Thomson, Jr.
Patented Case
View Patent ↗
Granted: Apr 2, 1996
Filed: Aug 31, 1994
Inventors
Sungho Jin
Gregory Peter Kochanski
John Thomson, Jr.
Assignee (at issue)
AT&T CORP.
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.