Granted Patent
Utility
US 6,657,776 · App. 09/989,884
Pump source including polarization scrambling in Raman amplified optical WDM systems
Inventor:
Narayan L. Gehlot
Patented Case
View Patent ↗
Granted: Dec 2, 2003
Filed: Nov 21, 2001
Inventor
Narayan L. Gehlot
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.