Granted Patent
Utility
US 6,529,593 · App. 09/742,924
Prepaid phone service for both wired and wireless telecommunication devices
Inventor:
Roderick Nelson
Patented Case
View Patent ↗
Granted: Mar 4, 2003
Filed: Dec 21, 2000
Inventor
Roderick Nelson
Assignee (at issue)
AT&T WIRELESS SERVICES, 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.