Patent Assignment
Reel/Frame 009219/0067
Assignment of Assignor's Interest
Recorded: 1998-05-22
Pages: 3
Assignor
SHEFFIELD, JOHN P.
Executed: 1998-05-13
Assignee
AT&T WIRELESS SERVICES, INC.
5000 CARILLON POINT, KIRKLAND, WASHINGTON, 98033
Covered Property
(1)
Method and System for Optimizing Performance of a Mobile Communication System
Patent:
6,603,966 →
Application:
08/996,486 →
Related Assignments
(5)
Other recorded transfers of the patent in this record — the chain of ownership.
Certificate of Conversion
Apr 22, 2005
From: CINGULAR WIRELESS II, INC.
To: CINGULAR WIRLEESS II, LLC
Reel/Frame 017546/0612 →
Assignment of Assignor's Interest
Apr 22, 2005
From: NEW CINGULAR WIRELESS SERVICES, INC. F/K/A AT&T WIRELESS SERVICES, INC.
To: CINGULAR WIRELESS II, INC.
Reel/Frame 017555/0711 →
Certificate of Conversion
Mar 29, 2006
From: CINGULAR WIRELESS II, INC.
To: CINGULAR WIRELESS II, LLC
Reel/Frame 017696/0375 →
Change of Name
May 30, 2008
From: CINGULAR WIRELESS II, LLC
To: AT&T MOBILITY II, LLC
Reel/Frame 021046/0367 →
Change of Name
Jun 10, 2008
From: AT&T MOBILITY II, LLC
To: AT&T MOBILITY II LLC
Reel/Frame 021074/0891 →