Granted Patent
Utility
US 6,798,786 · App. 09/370,984
Managing calls over a data network
Inventors:
Wing F. Lo, Xuewen Li, Alireza Abaye
Patented Case
View Patent ↗
Granted: Sep 28, 2004
Filed: Aug 20, 1999
Inventors
Wing F. Lo
Xuewen Li
Alireza Abaye
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.