Granted Patent
Utility
US 5,754,006 · App. 08/617,729
Broad-band traveling-wave tube with offsets on pole pieces and spacers
Inventor:
Satoshi Tonegawa
Patented Case
View Patent ↗
Granted: May 19, 1998
Filed: Apr 1, 1996
Inventor
Satoshi Tonegawa
Assignee (at issue)
NEC CORPORATION
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.