Granted Patent
Utility
US 5,907,601 · App. 09/045,708
Call pacing method
Inventors:
John David, Paul Zmuda
Patented Case
View Patent ↗
Granted: May 25, 1999
Filed: Mar 23, 1998
Inventors
John David
Paul Zmuda
Assignee (at issue)
EIS International
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.