Granted Patent
Utility
US 6,081,368 · App. 08/997,262
Optical amplifier for bi-directional WDM optical communications systems
Inventor:
Jean-Marc Pierre Delavaux
Patented Case
View Patent ↗
Granted: Jun 27, 2000
Filed: Dec 23, 1997
Inventor
Jean-Marc Pierre Delavaux
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.