Granted Patent
Utility
US 6,574,384 · App. 09/545,545
Testing operation of a photonic switch
Inventors:
George Cannell, Adrian Sparks
Patented Case
View Patent ↗
Granted: Jun 3, 2003
Filed: Apr 7, 2000
Inventors
George Cannell
Adrian Sparks
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.