Granted Patent
Utility
US 6,735,286 · App. 09/424,790
Telephone system integrated text based communication processes, apparatus and systems
Inventors:
Frederic W. Hansen, Darrell L. Jennings, Robert Jason Bonner
Patented Case
View Patent ↗
Granted: May 11, 2004
Filed: Aug 2, 2000
Inventors
Frederic W. Hansen
Darrell L. Jennings
Robert Jason Bonner
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.