Granted Patent
Utility
US 6,813,407 · App. 10/648,025
Method and apparatus for bridging optical signals in an optical network
Inventors:
Rajiv Ramaswami, Robert Ward
Patented Case
View Patent ↗
Granted: Nov 2, 2004
Filed: Aug 26, 2003
Inventors
Rajiv Ramaswami
Robert Ward
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.