Granted Patent
Utility
US 5,530,741 · App. 08/156,557
Method for providing inter-lata caller identification
Inventor:
Robert M. Rubin
Patented Case
View Patent ↗
Granted: Jun 25, 1996
Filed: Nov 23, 1993
Inventor
Robert M. Rubin
Assignee (at issue)
AT&T 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.