Granted Patent
Utility
US 6,513,121 · App. 09/357,679
Securing feature activation in a telecommunication system
Inventor:
Robert J. Serkowski
Patented Case
View Patent ↗
Granted: Jan 28, 2003
Filed: Jul 20, 1999
Inventor
Robert J. Serkowski
Assignee (at issue)
Avaya Technology LLC
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.