Granted Patent
Utility
US 4,831,335 · App. 07/195,074
High gain miniature crossed-field amplifier
Inventors:
Chris L. Wheeland, Guilford R. MacPhail
Patented Case
View Patent ↗
Granted: May 16, 1989
Filed: May 17, 1988
Inventors
Chris L. Wheeland
Guilford R. MacPhail
Assignee (at issue)
Litton Systems, 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.