Granted Patent
Utility
US 5,541,977 · App. 08/440,183
Method and apparatus for preventing wireless fraud
Inventors:
Steven J. Hodges, Zev C. Rubenstein
Patented Case
View Patent ↗
Granted: Jul 30, 1996
Filed: May 12, 1995
Inventors
Steven J. Hodges
Zev C. Rubenstein
Assignee (at issue)
AT&T CORP.
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.