Granted Patent
Utility
US 6,449,269 · App. 09/224,548
Packet voice telephony system and method
Inventor:
Phillip Karl Edholm
Patented Case
View Patent ↗
Granted: Sep 10, 2002
Filed: Dec 31, 1998
Inventor
Phillip Karl Edholm
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.