Granted Patent
Utility
US 6,697,340 · App. 10/336,999
System and method for providing enhanced services for a telecommunication call
Inventors:
Joseph Michael Christie, Tracy Lee Nelson
Patented Case
View Patent ↗
Granted: Feb 24, 2004
Filed: Jan 6, 2003
Inventors
Joseph Michael Christie
Tracy Lee Nelson
Assignee (at issue)
SPRINT COMMUNICATIONS COMPANY, L.P.
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.