Granted Patent
Utility
US 6,141,563 · App. 08/991,580
SIM card secured subscriber unit
Inventors:
Michael Miller, James Morris Tooker
Patented Case
View Patent ↗
Granted: Oct 31, 2000
Filed: Dec 16, 1997
Inventors
Michael Miller
James Morris Tooker
Assignee (at issue)
Motorola, 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.