Granted Patent
Utility
US 4,698,521 · App. 06/832,210
Bi-directional current switch
Inventors:
James Edward Beasley, Steven M. Lindsey
Patented Case
View Patent ↗
Granted: Oct 6, 1987
Filed: Feb 24, 1986
Inventors
James Edward Beasley
Steven M. Lindsey
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.