Granted Patent
Utility
US 5,185,847 · App. 07/870,305
Optical amplifier in the 1.26 .mu.m to 1.34 .mu.m spectrum range
Inventors:
Herve A. Fevrier, Jean-Francois Marcerou, Christian Le Sergent
Patented Case
View Patent ↗
Granted: Feb 9, 1993
Filed: Apr 17, 1992
Inventors
Herve A. Fevrier
Jean-Francois Marcerou
Christian Le Sergent
Assignee (at issue)
Alcatel N.V.
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.