Granted Patent
Utility
US 6,122,357 · App. 09/056,614
Providing enhanced services through double SIV and personal dial tone
Inventors:
Robert D. Farris, Alexander I. McAllister, Michael J. Strauss
Patented Case
View Patent ↗
Granted: Sep 19, 2000
Filed: Apr 8, 1998
Inventors
Robert D. Farris
Alexander I. McAllister
Michael J. Strauss
Assignee (at issue)
Bell Atlantic Network Services
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.