Granted Patent
Utility
US 4,307,317 · App. 06/085,577
Bipolar crossed-field device including electromagnetic coils of the same polarity
Inventor:
Robin J. Harvey
Patented Case
View Patent ↗
Granted: Dec 22, 1981
Filed: Oct 17, 1979
Inventor
Robin J. Harvey
Assignee (at issue)
Hughes Aircraft 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.