IP Library › Assignment 020641/0115
Patent Assignment
Reel/Frame 020641/0115

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
Patent: 6,687,337 →
Application: 10/161,050 →
Publication: US 2002/0196909
Related Assignments (3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Apr 25, 2003
From: AMERITECH PROPERTIES, INC.
To: SBC HOLDINGS PROPERTIES, L.P.
Reel/Frame 013974/0542 →
Assignment of Assignor's Interest Apr 25, 2003
From: AMERITECH CORPORATION
To: AMERITECH PROPERTIES, INC.
Reel/Frame 013986/0525 →
Assignment of Assignor's Interest Apr 25, 2003
From: SBC HOLDINGS PROPERTIES, L.P.
To: SBC PROPERTIES, L.P.
Reel/Frame 014015/0689 →