Granted Patent
Utility
US 5,680,446 · App. 08/518,999
Advanced intelligent network screening
Inventors:
Harold C. Fleischer, III, Michael W. Boeckman
Patented Case
View Patent ↗
Granted: Oct 21, 1997
Filed: Aug 24, 1995
Inventors
Harold C. Fleischer, III
Michael W. Boeckman
Assignee (at issue)
Southwestern Bell Technology Resources, 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.