Granted Patent
Utility
US 6,791,971 · App. 09/452,146
Method and apparatus for providing a communications service, for communication and for extending packet network functionality
Inventors:
Marwan Osman, Antoine Zoghbi
Patented Case
View Patent ↗
Granted: Sep 14, 2004
Filed: Dec 1, 1999
Inventors
Marwan Osman
Antoine Zoghbi
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.