Granted Patent
Utility
US 5,701,152 · App. 08/534,903
Arrangement for billing interactive communication services
Inventor:
Howard Chen
Patented Case
View Patent ↗
Granted: Dec 23, 1997
Filed: Sep 28, 1995
Inventor
Howard Chen
Assignee (at issue)
LUCENT TECHNOLOGIES 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.