Patent Assignment
Reel/Frame 008431/0610
Assignment of Assignor's Interest
Recorded: 1997-01-15
Pages: 3
Assignor
TIRABASSI, KAREN
Executed: 1997-01-15
Assignee
COMCAST CELLULAR COMMUNICATIONS, INC. A CORP. OF DELAWARE
480 E. SWEDESFOR ROAD, WAYNE, PENNSYLVANIA, 19087
Covered Property
(1)
Pre-Defined Groups in a Cellular Telephone System
Application:
60/037,634 →
Related Assignments
(5)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name
Oct 19, 2017
From: SBC TECHNOLOGY RESOURCES, INC.
To: SBC LABORATORIES, INC.
Reel/Frame 044240/0376 →
Change of Name
Oct 19, 2017
From: COMCAST CELLULAR COMMUNICATIONS, INC.
To: DELAWARE VALLEY CELLULAR COMMUNICATIONS, INC.
Reel/Frame 044443/0015 →
Assignment of Assignor's Interest
Oct 19, 2017
From: DELAWARE VALLEY CELLULAR COMMUNICATIONS, INC.
To: SBC TECHNOLOGY RESOURCES, INCORPORATED
Reel/Frame 043906/0995 →
Assignment of Assignor's Interest
Oct 20, 2017
From: AT&T LABS, INC.
To: AT&T INTELLECTUAL PROPERTY I, L.P.
Reel/Frame 044484/0881 →
Change of Name
Oct 20, 2017
From: SBC LABORATORIES, INC.
To: AT&T LABS, INC.
Reel/Frame 044518/0831 →