Granted Patent
Utility
US 6,667,956 · App. 09/071,345
Multi-class network
Inventors:
Maged E. Beshai, James Yan
Patented Case
View Patent ↗
Granted: Dec 23, 2003
Filed: May 1, 1998
Inventors
Maged E. Beshai
James Yan
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.