Granted Patent
Utility
US 6,373,621 · App. 09/764,946
Method and apparatus for safer operation of raman amplifiers
Inventors:
Timothy Andrew Large, Douglas James Beckett
Patented Case
View Patent ↗
Granted: Apr 16, 2002
Filed: Jan 18, 2001
Inventors
Timothy Andrew Large
Douglas James Beckett
Assignee (at issue)
Nortel Networks Limited
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.