Granted Patent
Utility
US 4,912,366 · App. 07/129,260
Coaxial traveling wave tube amplifier
Inventor:
Norman J. Dionne
Patented Case
View Patent ↗
Granted: Mar 27, 1990
Filed: Dec 7, 1987
Inventor
Norman J. Dionne
Assignee (at issue)
Raytheon Company
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.