Granted Patent
Utility
US 5,802,144 · App. 08/632,198
Minimum common span network outage detection and isolation
Inventors:
Robert Laird, William D. Croslin, Craig Hayes, Bruce Stewart
Patented Case
View Patent ↗
Granted: Sep 1, 1998
Filed: Apr 15, 1996
Inventors
Robert Laird
William D. Croslin
Craig Hayes
Bruce Stewart
Assignee (at issue)
MCI, LLC
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.