Granted Patent
Utility
US 5,487,107 · App. 08/195,414
Method and apparatus for processing telephone calls charged to credit cards
Inventors:
Jean Atkins, Richard Harris, Julie M. Ladieu-Walton, David C. McChristian
Patented Case
View Patent ↗
Granted: Jan 23, 1996
Filed: Feb 14, 1994
Inventors
Jean Atkins
Richard Harris
Julie M. Ladieu-Walton
David C. McChristian
Assignee (at issue)
AT & T IPM Corp.
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.