Granted Patent
Utility
US 6,359,975 · App. 09/527,269
Intelligent-networked telecommunication system which strategically creates and employs service-dependent pseudo calling line identities to eliminate redundant billing errors
Inventor:
Yigang Cai
Patented Case
View Patent ↗
Granted: Mar 19, 2002
Filed: Mar 17, 2000
Inventor
Yigang Cai
Assignee (at issue)
LUCENT TECHNOLOGIES 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.