Granted Patent
Utility
US 5,541,613 · App. 08/333,913
Efficient broadband antenna system using photonic bandgap crystals
Inventors:
Juan F. Lam, Ronald I. Wolfson, Jerome I. Glaser
Patented Case
View Patent ↗
Granted: Jul 30, 1996
Filed: Nov 3, 1994
Inventors
Juan F. Lam
Ronald I. Wolfson
Jerome I. Glaser
Assignee (at issue)
Hughes Aircraft Company, Hughes Electronics
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.