Granted Patent
Utility
US 6,226,364 · App. 08/986,973
Method and system for providing prepaid and credit-limited telephone services
Inventor:
Douglas O'Neil
Patented Case
View Patent ↗
Granted: May 1, 2001
Filed: Dec 8, 1997
Inventor
Douglas O'Neil
Assignee (at issue)
BellSouth Intellectual Property Management 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.