Granted Patent
Utility
US 6,337,903 · App. 09/391,981
Call setup for prepaid services
Inventor:
Juha-Pekka Manner
Patented Case
View Patent ↗
Granted: Jan 8, 2002
Filed: Sep 9, 1999
Inventor
Juha-Pekka Manner
Assignee (at issue)
Nokia Networks Oy
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.