Granted Patent
Utility
US 4,301,458 · App. 06/125,635
Antenna array with impedance matching using mutual coupling
Inventor:
McKinley R. Johns
Patented Case
View Patent ↗
Granted: Nov 17, 1981
Filed: Feb 28, 1980
Inventor
McKinley R. Johns
Assignee (at issue)
RCA Corporation
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.