Granted Patent
Utility
US 4,750,175 · App. 06/902,197
Network diagnostic apparatus and method
Inventors:
William D. Brenneman, Robert Hodges
Patented Case
View Patent ↗
Granted: Jun 7, 1988
Filed: Aug 29, 1986
Inventors
William D. Brenneman
Robert Hodges
Assignee (at issue)
Pactel Communications Companies
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.