Granted Patent
Utility
US 5,506,898 · App. 08/273,667
Expected wait-time indication arrangement
Inventors:
Ralph J. Costantini, Andrew D. Flockhart, Cecil W. Maccannon, Jr., James Leo Murtaugh, III, Carol Santagato, Minh Tran
Patented Case
View Patent ↗
Granted: Apr 9, 1996
Filed: Jul 12, 1994
Inventors
Ralph J. Costantini
Andrew D. Flockhart
Cecil W. Maccannon, Jr.
James Leo Murtaugh, III
Carol Santagato
Minh Tran
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.