Granted Patent
Utility
US 5,444,774 · App. 08/367,663
Interactive queuing sytem for call centers
Inventor:
Albert Friedes
Patented Case
View Patent ↗
Granted: Aug 22, 1995
Filed: Jan 3, 1995
Inventor
Albert Friedes
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.