Granted Patent
Utility
US 6,661,881 · App. 09/504,562
Method and system for controlling functional capabilities of a telephonic switch employing control and status messages
Inventors:
Stuart Mandel Garland, David B. Smith
Patented Case
View Patent ↗
Granted: Dec 9, 2003
Filed: Feb 15, 2000
Inventors
Stuart Mandel Garland
David B. Smith
Assignee (at issue)
LUCENT TECHNOLOGIES INC.
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.