Granted Patent
Utility
US 6,529,301 · App. 09/362,886
Optical switch and protocols for use therewith
Inventor:
Guo-Qiang Wang
Patented Case
View Patent ↗
Granted: Mar 4, 2003
Filed: Jul 29, 1999
Inventor
Guo-Qiang Wang
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.