Granted Patent
Utility
US 5,790,293 · App. 08/549,588
Systems for monitoring optical path characteristics in an optical communication system
Inventor:
Nicholas J. Frigo
Patented Case
View Patent ↗
Granted: Aug 4, 1998
Filed: Oct 27, 1995
Inventor
Nicholas J. Frigo
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.