Granted Patent
Utility
US 6,208,316 · App. 08/927,638
Frequency selective surface devices for separating multiple frequencies
Inventor:
Robert Cahill
Patented Case
View Patent ↗
Granted: Mar 27, 2001
Filed: Sep 11, 1997
Inventor
Robert Cahill
Assignee (at issue)
Matra Marconi Space UK Limited
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.