Granted Patent
Utility
US 5,953,652 · App. 08/788,151
Detection of fraudulently registered mobile phones
Inventors:
Umesh J. Amin, Lorin Rowe, Russell J. Waughman
Patented Case
View Patent ↗
Granted: Sep 14, 1999
Filed: Jan 24, 1997
Inventors
Umesh J. Amin
Lorin Rowe
Russell J. Waughman
Assignee (at issue)
AT&T WIRELESS SERVICES, 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.