Granted Patent
Utility
US 5,883,549 · App. 08/879,456
Bipolar junction transistor (BJT)--resonant tunneling diode (RTD) oscillator circuit and method
Inventor:
Hector J. De Los Santos
Patented Case
View Patent ↗
Granted: Mar 16, 1999
Filed: Jun 20, 1997
Inventor
Hector J. De Los Santos
Assignee (at issue)
HUGHES ELECTRONICS LIMITED
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.