Granted Patent
Utility
US 4,745,336 · App. 06/867,074
Microwave generation by virtual cathode with phase velocity matching
Inventor:
Tihiro Ohkawa
Patented Case
View Patent ↗
Granted: May 17, 1988
Filed: May 27, 1986
Inventor
Tihiro Ohkawa
Assignee (at issue)
GA Technologies, 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.