Granted Patent
Utility
US 6,493,336 · App. 09/281,503
System optimized always on dynamic integrated services digital network
Inventors:
Mark J. Perry, Patrick J. Dagert
Patented Case
View Patent ↗
Granted: Dec 10, 2002
Filed: Mar 30, 1999
Inventors
Mark J. Perry
Patrick J. Dagert
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.