Granted Patent
Utility
US 6,233,072 · App. 09/001,884
Method and system for restoring coincident line and facility failures
Inventors:
Shoa-Kai Liu, Glenn A. Wellbrock
Patented Case
View Patent ↗
Granted: May 15, 2001
Filed: Dec 31, 1997
Inventors
Shoa-Kai Liu
Glenn A. Wellbrock
Assignee (at issue)
MCI Communications Corporation
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.