Granted Patent
Utility
US 4,691,177 · App. 06/782,809
Waveguide switch with variable short wall coupling
Inventors:
Mon N. Wong, Ann L. Peebles
Patented Case
View Patent ↗
Granted: Sep 1, 1987
Filed: Oct 2, 1985
Inventors
Mon N. Wong
Ann L. Peebles
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.