Granted Patent
Utility
US 6,222,848 · App. 08/996,172
Gigabit ethernet interface to synchronous optical network (SONET) ring
Inventors:
Kenneth Hayward, Donald Ellis, John Philip Brule, Michael C. To
Patented Case
View Patent ↗
Granted: Apr 24, 2001
Filed: Dec 22, 1997
Inventors
Kenneth Hayward
Donald Ellis
John Philip Brule
Michael C. To
Assignee (at issue)
Nortel Networks Limited
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.