Patent Assignment
Reel/Frame 020641/0105
Change of Name
Recorded: 2008-03-12
Pages: 6
Assignor
SBC PROPERTIES, L.P.
Executed: 2002-06-20
Assignee
AT&T KNOWLEDGE VENTURES, L.P.
645 E. PLUMB LANE, RENO, NEVADA, 89502
Covered Property
(1)
Method and System for Termination Blocking of Message Delivery Service