Granted Patent
Utility
US 5,276,450 · App. 06/246,509
Phase coherent heterodyne anti-jam method and apparatus
Inventor:
Charles W. Schwegman
Patented Case
View Patent ↗
Granted: Jan 4, 1994
Filed: Mar 23, 1981
Inventor
Charles W. Schwegman
Assignee (at issue)
Systems Research Laboratories, Inc.
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.