Granted Patent
Utility
US 5,225,840 · App. 07/894,898
Wideband, low noise microwave signal generator
Inventor:
Steve I. Hsu
Patented Case
View Patent ↗
Granted: Jul 6, 1993
Filed: Jun 8, 1992
Inventor
Steve I. Hsu
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.