Granted Patent
Utility
US 6,144,670 · App. 09/130,301
Method and apparatus for establishing and facilitating a voice call connection from a client computer to a PSTN extension
Inventors:
Jeffrey B. Sponaugle, Paul D. Crutcher, Al J. Simon, Jason T. Cassezza, Mojtaba Mirashrafi, Kenneth L. Keeler, Ajit Pendse
Patented Case
View Patent ↗
Granted: Nov 7, 2000
Filed: Aug 6, 1998
Inventors
Jeffrey B. Sponaugle
Paul D. Crutcher
Al J. Simon
Jason T. Cassezza
Mojtaba Mirashrafi
Kenneth L. Keeler
Ajit Pendse
Assignee (at issue)
eFusion, Inc.
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.