Granted Patent
Utility
US 6,606,427 · App. 09/511,065
Switch for optical signals
Inventors:
Alan Graves, Nigel Baker, Peter David Roorda, Robert Spagnoletti
Patented Case
View Patent ↗
Granted: Aug 12, 2003
Filed: Feb 23, 2000
Inventors
Alan Graves
Nigel Baker
Peter David Roorda
Robert Spagnoletti
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.