Patent Assignment
Reel/Frame 025590/0773
Assignment of Assignor's Interest
Recorded: 2011-01-05
Pages: 11
Assignor
AT&T DELAWARE INTELLECTUAL PROPERTY, INC.
Executed: 2008-12-16
Assignee
AT&T INTELLECTUAL PROPERTY I, L.P.
645 EAST PLUMB LANE, RENO, NEVADA, 89502
Covered Property
(1)
Audio Alert Sytem and Method
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.