Patent Assignment
Reel/Frame 019650/0184
Change of Name
Recorded: 2007-08-06
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 in a Switch-Based Telecommunication System
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.