Granted Patent
Utility
US 5,323,167 · App. 07/998,390
Antenna configuration and system for determining the direction of a radio frequency signal
Inventors:
David L. Peavey, Katherine A. Tieszen, Timothy D. Stephens, Thomas J. Birnbaum, Fred E. Schader, Nicholas Cianos, John R. Conkle
Patented Case
View Patent ↗
Granted: Jun 21, 1994
Filed: Dec 30, 1992
Inventors
David L. Peavey
Katherine A. Tieszen
Timothy D. Stephens
Thomas J. Birnbaum
Fred E. Schader
Nicholas Cianos
John R. Conkle
Assignee (at issue)
Delfin Systems
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.