Granted Patent
Utility
US 6,446,200 · App. 09/276,452
Service management
Inventors:
Steven Ball, Darryl Black, Donald Opperman, Kevin Farrell
Patented Case
View Patent ↗
Granted: Sep 3, 2002
Filed: Mar 25, 1999
Inventors
Steven Ball
Darryl Black
Donald Opperman
Kevin Farrell
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.