Granted Patent
Utility
US 5,887,250 · App. 08/678,569
Mobile station having lock code based on secure value
Inventor:
Bharat Shah
Patented Case
View Patent ↗
Granted: Mar 23, 1999
Filed: Jul 12, 1996
Inventor
Bharat Shah
Assignee (at issue)
Nokia Mobile Phones 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.