Granted Patent
Utility
US 5,140,200 · App. 07/554,278
Pin diode attenuator
Inventor:
Robert Stanton
Patented Case
View Patent ↗
Granted: Aug 18, 1992
Filed: Jul 17, 1990
Inventor
Robert Stanton
Assignee (at issue)
General Instrument Corporation
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.