Granted Patent
Utility
US 5,389,939 · App. 08/040,788
Ultra wideband phased array antenna
Inventors:
Raymond Tang, Kuan M. Lee
Patented Case
View Patent ↗
Granted: Feb 14, 1995
Filed: Mar 31, 1993
Inventors
Raymond Tang
Kuan M. Lee
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.