Granted Patent
Utility
US 5,764,756 · App. 08/585,347
Networked telephony central offices
Inventor:
Arthur E. Onweller
Patented Case
View Patent ↗
Granted: Jun 9, 1998
Filed: Jan 11, 1996
Inventor
Arthur E. Onweller
Assignee (at issue)
U S West, 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.