Granted Patent
Utility
US 5,337,345 · App. 07/921,557
System for securing mobile telephones from unauthorized transmission
Inventors:
Barrie Cassidy, David McNab, James Rooney
Patented Case
View Patent ↗
Granted: Aug 9, 1994
Filed: Jul 29, 1992
Inventors
Barrie Cassidy
David McNab
James Rooney
Assignee (at issue)
Novatel Communications Ltd.
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.