Granted Patent
Utility
US 4,356,496 · App. 06/231,383
Loop-coupler commutating feed for scanning a circular array antenna
Inventors:
Ronald I. Wolfson, Ching-Fai Cho
Patented Case
View Patent ↗
Granted: Oct 26, 1982
Filed: Feb 4, 1981
Inventors
Ronald I. Wolfson
Ching-Fai Cho
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.