Granted Patent
Utility
US 5,988,497 · App. 08/655,501
Method for authenticating credit transactions to prevent fraudulent charges
Inventor:
Michelle H. Wallace
Patented Case
View Patent ↗
Granted: Nov 23, 1999
Filed: May 30, 1996
Inventor
Michelle H. Wallace
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.