Granted Patent
Utility
US 5,013,933 · App. 06/809,638
Bias circuit for solid state devices
Inventor:
Robert L. Eisenhart
Patented Case
View Patent ↗
Granted: May 7, 1991
Filed: Dec 16, 1985
Inventor
Robert L. Eisenhart
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.