Granted Patent
Utility
US 5,915,005 · App. 08/862,282
Method and system for toll charge and rate inquiry service for portable numbers
Inventor:
Jingsha He
Patented Case
View Patent ↗
Granted: Jun 22, 1999
Filed: May 23, 1997
Inventor
Jingsha He
Assignee (at issue)
MCI Communications Corporation
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.