Patent Assignment
Reel/Frame 006226/0520
Assignment of Assignors Interest.
Recorded: 1992-08-14
Pages: 3
Assignee
SOUTHWESTERN BELL TECHNOLOGY RESOURCES, INC. A CORP. OF DE
550 MARYVILLE CENTRE DRIVE, ST. LOUIS, MISSOURI, 63141
Covered Property
(1)
Apparatus for Facilitating the Display of Information Relating to the Origin of a Third Source Caller
Patent:
5,805,677 →
Application:
07/911,471 →
Related Assignments
(5)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name
Apr 30, 1998
From: SOUTHWESTERN BELL TECHNOLOGY RESOURCES, INC.
To: SBC TECHNOLOGY RESOURCES, INC.
Reel/Frame 009328/0372 →
Change of Name
Jul 1, 2003
From: SBC TECHNOLOGY RESOURCES, INC.
To: SBC LABORATORIES, INC.
Reel/Frame 014220/0626 →
Change of Name
Feb 10, 2012
From: SBC LABORATORIES, INC.
To: AT&T LABS, INC.
Reel/Frame 027688/0967 →
Assignment of Assignor's Interest
May 14, 2012
From: AT&T INTELLECTUAL PROPERTY I, L.P.
To: TEXAS TECHNOLOGY VENTURES
Reel/Frame 028204/0089 →
Assignment of Assignor's Interest
Jun 11, 2012
From: AT&T LABS, INC.
To: AT&T INTELLECTUAL PROPERTY I, L.P.
Reel/Frame 028349/0022 →