Granted Patent
Utility
US 5,486,798 · App. 08/350,600
Multiplanar hybrid coupler
Inventor:
William Veitschegger
Patented Case
View Patent ↗
Granted: Jan 23, 1996
Filed: Dec 7, 1994
Inventor
William Veitschegger
Assignee (at issue)
AT & T IPM Corp.
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.