Granted Patent
Utility
US 6,831,563 · App. 09/811,563
Location visit confirmation services for wireless devices
Inventor:
Sunil H. Contractor
Patented Case
View Patent ↗
Granted: Dec 14, 2004
Filed: Mar 20, 2001
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.