Granted Patent
Utility
US 5,802,148 · App. 08/569,268
System for generating aural announcements within a premises
Inventor:
Theodore Sizer, II
Patented Case
View Patent ↗
Granted: Sep 1, 1998
Filed: Dec 8, 1995
Inventor
Theodore Sizer, II
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.