Granted Patent
Utility
US 6,005,694 · App. 08/580,391
Method and system for detecting optical faults within the optical domain of a fiber communication network
Inventor:
Shoa-Kai Liu
Patented Case
View Patent ↗
Granted: Dec 21, 1999
Filed: Dec 28, 1995
Inventor
Shoa-Kai Liu
Assignee (at issue)
MCI WorldCom. 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.