Granted Patent
Utility
US 4,720,677 · App. 06/737,300
R. F. triaxial directional bridge
Inventors:
S. Bruce Donecker, Julius K. Botka
Patented Case
View Patent ↗
Granted: Jan 19, 1988
Filed: May 16, 1985
Inventors
S. Bruce Donecker
Julius K. Botka
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.