Granted Patent
Utility
US 4,859,907 · App. 07/028,536
Traveling-wave tube with damping of undesired frequencies
Inventors:
Guido Busacca, Vincenzo Meli, Mario Spalla
Patented Case
View Patent ↗
Granted: Aug 22, 1989
Filed: Mar 17, 1987
Inventors
Guido Busacca
Vincenzo Meli
Mario Spalla
Assignee (at issue)
Selenia Industrie Elettroniche Associate S.p.A.
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.