Granted Patent
Utility
US 5,953,653 · App. 08/789,927
Method and system for preventing mobile roaming fraud
Inventors:
Charles A. Josenhans, Shawn M. Waliser, Joseph B. Moore
Patented Case
View Patent ↗
Granted: Sep 14, 1999
Filed: Jan 28, 1997
Inventors
Charles A. Josenhans
Shawn M. Waliser
Joseph B. Moore
Assignees (at issue)
MediaOne Group, Inc.
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.