Granted Patent
Utility
US 4,989,009 · App. 07/497,750
Digital range correlator
Inventor:
Avinoam S. Zerkowitz
Patented Case
View Patent ↗
Granted: Jan 29, 1991
Filed: Mar 19, 1990
Inventor
Avinoam S. Zerkowitz
Assignee (at issue)
Hughes Aircraft 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.