Granted Patent
Utility
US 5,673,142 · App. 08/692,296
Optical amplifier with internal input signal monitoring tap
Inventors:
Mohammad Taghi Fatehi, Hossein Izadpanah
Patented Case
View Patent ↗
Granted: Sep 30, 1997
Filed: Aug 1, 1996
Inventors
Mohammad Taghi Fatehi
Hossein Izadpanah
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.