Granted Patent
Utility
US 5,914,798 · App. 08/580,608
Restoration systems for an optical telecommunications network
Inventor:
Shoa-Kai Liu
Patented Case
View Patent ↗
Granted: Jun 22, 1999
Filed: Dec 29, 1995
Inventor
Shoa-Kai Liu
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.