Granted Patent
Utility
US 5,887,054 · App. 08/808,228
Play and plug telephone system
Inventors:
Edmund T. Burke, Benjamin Wilson Day, Jr., Timothy I. Ross
Patented Case
View Patent ↗
Granted: Mar 23, 1999
Filed: Feb 28, 1997
Inventors
Edmund T. Burke
Benjamin Wilson Day, Jr.
Timothy I. Ross
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.