Granted Patent
Utility
US 5,887,253 · App. 08/620,373
Method for activating and servicing a cellular telephone
Inventors:
Douglas O'Neil, Kenneth Bray Asher
Patented Case
View Patent ↗
Granted: Mar 23, 1999
Filed: Mar 22, 1996
Inventors
Douglas O'Neil
Kenneth Bray Asher
Assignee (at issue)
BellSouth Corporation
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.