Granted Patent
Utility
US 6,434,140 · App. 09/415,907
System and method for implementing XoIP over ANSI-136-A circuit/switched/packet-switched mobile communications networks
Inventors:
Peter A. Barany, Jayshree Bharatia
Patented Case
View Patent ↗
Granted: Aug 13, 2002
Filed: Oct 8, 1999
Inventors
Peter A. Barany
Jayshree Bharatia
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.