Granted Patent
Utility
US 6,519,255 · App. 09/217,898
Universal optical network unit for use in narrowband and broadband access networks
Inventor:
Alan Graves
Patented Case
View Patent ↗
Granted: Feb 11, 2003
Filed: Dec 22, 1998
Inventor
Alan Graves
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.