Granted Patent
Utility
US 5,481,534 · App. 07/766,871
Data packet switch apparatus and method with enhanced charge assessment capability
Inventors:
Shawn A. Beachy, William W. Kean, DeCarla J. Morgan, Ani A. Okafor
Patented Case
View Patent ↗
Granted: Jan 2, 1996
Filed: Sep 27, 1991
Inventors
Shawn A. Beachy
William W. Kean
DeCarla J. Morgan
Ani A. Okafor
Assignee (at issue)
AT&T CORP.
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.