Granted Patent
Utility
US 5,903,636 · App. 08/957,832
System and method for providing caller identification in conjunction with calling card calls
Inventor:
Dale W. Malik
Patented Case
View Patent ↗
Granted: May 11, 1999
Filed: Oct 27, 1997
Inventor
Dale W. Malik
Assignee (at issue)
BellSouth 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.