Granted Patent
Utility
US 6,800,989 · App. 10/679,033
Method of forming filament for electron beam emitter
Inventor:
Tzvi Avnery
Patented Case
View Patent ↗
Granted: Oct 5, 2004
Filed: Oct 3, 2003
Inventor
Tzvi Avnery
Assignee (at issue)
Advanced Electron Beams, 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.