Granted Patent
Utility
US 6,032,132 · App. 09/097,136
Telecommunications access cost management system
Inventor:
Nickolas B. Nelson
Patented Case
View Patent ↗
Granted: Feb 29, 2000
Filed: Jun 12, 1998
Inventor
Nickolas B. Nelson
Assignee (at issue)
CSG Systems, 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.