Granted Patent
Utility
US 6,553,217 · App. 09/485,891
Mobile communication system for call charging and corresponding mobile station
Inventor:
Andreas Kundorf
Patented Case
View Patent ↗
Granted: Apr 22, 2003
Filed: Feb 17, 2000
Inventor
Andreas Kundorf
Assignee (at issue)
Siemens Aktiengesellschaft
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.