Granted Patent
Utility
US 4,458,217 · App. 06/308,307
Slot-coupled microwave diplexer and coupler therefor
Inventors:
Mon N. Wong, Frank Taormina
Patented Case
View Patent ↗
Granted: Jul 3, 1984
Filed: Oct 5, 1981
Inventors
Mon N. Wong
Frank Taormina
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.