Granted Patent
Utility
US 5,784,693 · App. 08/794,267
Cellular carrier selection system incorporating a preferred list of system identification codes (SIDs) corresponding to preferred cellular carriers
Inventors:
Clifton J. Barber, Stephen Thomas Hardin
Patented Case
View Patent ↗
Granted: Jul 21, 1998
Filed: Jan 31, 1997
Inventors
Clifton J. Barber
Stephen Thomas Hardin
Assignee (at issue)
Oki Telecom, 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.