Granted Patent
Utility
US 6,526,195 · App. 09/767,098
Protecting optical switches
Inventors:
Gordon D Henshall, Stephen Rolt
Patented Case
View Patent ↗
Granted: Feb 25, 2003
Filed: Jan 22, 2001
Inventors
Gordon D Henshall
Stephen Rolt
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.