Granted Patent
Utility
US 4,241,352 · App. 05/723,643
Feed network scanning antenna employing rotating directional coupler
Inventors:
Mark Alspaugh, Lawrence R. Murphy
Patented Case
View Patent ↗
Granted: Dec 23, 1980
Filed: Sep 15, 1976
Inventors
Mark Alspaugh
Lawrence R. Murphy
Assignee (at issue)
Ball Brothers Research 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.