Granted Patent
Utility
US 4,711,514 · App. 06/690,792
Product of and process for forming tapered waveguides
Inventors:
Gregory L. Tangonan, Huan-Wun Yen, David L. Persechini
Patented Case
View Patent ↗
Granted: Dec 8, 1987
Filed: Jan 11, 1985
Inventors
Gregory L. Tangonan
Huan-Wun Yen
David L. Persechini
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.