Granted Patent
Utility
US 5,907,417 · App. 08/871,466
Passive optical network with diagnostic loop-back
Inventors:
Thomas E. Darcie, Nicholas J. Frigo, Patrick P. Iannone
Patented Case
View Patent ↗
Granted: May 25, 1999
Filed: Jun 9, 1997
Inventors
Thomas E. Darcie
Nicholas J. Frigo
Patrick P. Iannone
Assignee (at issue)
LUCENT TECHNOLOGIES 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.