Granted Patent
Utility
US 6,704,563 · App. 09/371,176
Systems and methods for prerating costs for a communication event
Inventors:
Paul Senn, Thomas Erskine, John R. Cooper, Kenneth Sonberg
Patented Case
View Patent ↗
Granted: Mar 9, 2004
Filed: Aug 11, 1999
Inventors
Paul Senn
Thomas Erskine
John R. Cooper
Kenneth Sonberg
Assignee (at issue)
Boston Communications Group, 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.