Granted Patent
Utility
US 6,154,445 · App. 08/931,985
Telephony communication via varied redundant networks
Inventors:
Robert D. Farris, Dale L. Bartholomew
Patented Case
View Patent ↗
Granted: Nov 28, 2000
Filed: Sep 17, 1997
Inventors
Robert D. Farris
Dale L. Bartholomew
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.