Granted Patent
Utility
US 5,646,589 · App. 08/359,109
Electronic device having selectable alert modes
Inventors:
Nancy Welsh Murray, David Phillip Silverman
Patented Case
View Patent ↗
Granted: Jul 8, 1997
Filed: Dec 19, 1994
Inventors
Nancy Welsh Murray
David Phillip Silverman
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.