Granted Patent
Utility
US 4,468,528 · App. 06/361,312
Methods and apparatus for providing enhanced announcements in a telephone system
Inventors:
Carla F. Reece, Vincent D. Vanacore
Patented Case
View Patent ↗
Granted: Aug 28, 1984
Filed: Mar 24, 1982
Inventors
Carla F. Reece
Vincent D. Vanacore
Assignee (at issue)
AT&T Technologies Incorporated
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.