Granted Patent
Utility
US 6,643,505 · App. 09/508,740
Method for operating a telecommunications network with a personalized database
Inventor:
Erich Kamperschroer
Patented Case
View Patent ↗
Granted: Nov 4, 2003
Filed: Mar 15, 2000
Inventor
Erich Kamperschroer
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.