Granted Patent
Utility
US 4,352,111 · App. 06/228,587
Multi-band antenna coupling network
Inventors:
David J. Carlson, Sander H. C. Tsou
Patented Case
View Patent ↗
Granted: Sep 28, 1982
Filed: Jan 26, 1981
Inventors
David J. Carlson
Sander H. C. Tsou
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.