Granted Patent
Utility
US 6,297,765 · App. 06/304,458
Bistatic passive radar system with improved ranging
Inventors:
Lawrence M. Frazier, Benjamin G. Lewis
Patented Case
View Patent ↗
Granted: Oct 2, 2001
Filed: Sep 22, 1981
Inventors
Lawrence M. Frazier
Benjamin G. Lewis
Assignee (at issue)
Raytheon Company
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.