Granted Patent
Utility
US 4,988,959 · App. 07/429,826
YIG tuned oscillator using composite feedback
Inventors:
Amarpal S. Khanna, Derek L. Davis
Patented Case
View Patent ↗
Granted: Jan 29, 1991
Filed: Oct 31, 1989
Inventors
Amarpal S. Khanna
Derek L. Davis
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.