Granted Patent
Utility
US 4,755,772 · App. 07/058,589
Switchable microwave oscillator
Inventor:
Amarpal S. Khanna
Patented Case
View Patent ↗
Granted: Jul 5, 1988
Filed: Jun 5, 1987
Inventor
Amarpal S. Khanna
Assignee (at issue)
Avantek, Inc.
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.