Granted Patent
Utility
US 5,937,044 · App. 08/724,239
System and method for alternate billing arrangement during a telephone call
Inventor:
Hack Ho Kim
Patented Case
View Patent ↗
Granted: Aug 10, 1999
Filed: Sep 30, 1996
Inventor
Hack Ho Kim
Assignee (at issue)
MCI Communications 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.