Granted Patent
Utility
US 5,402,089 · App. 08/151,084
Asymmetrically coupled TE.sub.21 coupler
Inventors:
George I. Tsuda, Harold A. Uyeda
Patented Case
View Patent ↗
Granted: Mar 28, 1995
Filed: Nov 12, 1993
Inventors
George I. Tsuda
Harold A. Uyeda
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.