Granted Patent
Utility
US 5,933,477 · App. 08/787,465
Changing-urgency-dependent message or call delivery
Inventor:
Charles C. Wu
Patented Case
View Patent ↗
Granted: Aug 3, 1999
Filed: Jan 22, 1997
Inventor
Charles C. Wu
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.