Granted Patent
Utility
US 4,890,077 · App. 07/329,625
FET monolithic microwave integrated circuit variable attenuator
Inventor:
Horng-Jye Sun
Patented Case
View Patent ↗
Granted: Dec 26, 1989
Filed: Mar 28, 1989
Inventor
Horng-Jye Sun
Assignee (at issue)
Teledyne MEC
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.