Granted Patent
Utility
US 5,384,575 · App. 07/249,039
Bandpass frequency selective surface
Inventor:
Te-Kao Wu
Patented Case
View Patent ↗
Granted: Jan 24, 1995
Filed: Sep 26, 1988
Inventor
Te-Kao Wu
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.