Granted Patent
Utility
US 6,169,893 · App. 09/002,064
Wireless communication system that supports multiple standards, multiple protocol revisions, multiple extended services and multiple extended services delivery options and method of operation therefor
Inventors:
Kamel M. Shaheen, Chenhong Huang, Girish Patel, Mark O'Brien
Patented Case
View Patent ↗
Granted: Jan 2, 2001
Filed: Dec 31, 1997
Inventors
Kamel M. Shaheen
Chenhong Huang
Girish Patel
Mark O'Brien
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.