Granted Patent
Utility
US 4,743,919 · App. 06/916,355
Microwave frequency selective surface having fibrous ceramic body
Inventors:
Stanley S. Chang, Hui Bau
Patented Case
View Patent ↗
Granted: May 10, 1988
Filed: Oct 7, 1986
Inventors
Stanley S. Chang
Hui Bau
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.