Granted Patent
Utility
US 4,890,102 · App. 07/054,311
Visual display for communication network monitoring and troubleshooting
Inventor:
Christopher Oliver
Patented Case
View Patent ↗
Granted: Dec 26, 1989
Filed: May 26, 1987
Inventor
Christopher Oliver
Assignee (at issue)
Cabletron, Inc.
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.