Granted Patent
Utility
US 6,778,653 · App. 09/436,563
Storing information about a telephony session
Inventors:
Michel Kallas, James Michael Lyell, Paul Spencer Dawkins
Patented Case
View Patent ↗
Granted: Aug 17, 2004
Filed: Nov 9, 1999
Inventors
Michel Kallas
James Michael Lyell
Paul Spencer Dawkins
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.