Granted Patent
Utility
US 6,711,240 · App. 09/727,660
Systems and methods for per use message delivery
Inventor:
Sunil H. Contractor
Patented Case
View Patent ↗
Granted: Mar 23, 2004
Filed: Dec 1, 2000
Inventor
Sunil H. Contractor
Assignee (at issue)
BELLSOUTH INTELLECTUAL PROPERTY 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.