Patent Assignment
Reel/Frame 004535/0905
Assignment of Assignors Interest.
Recorded: 1986-04-18
Pages: 2
Assignor
O'SULLIVAN, HARRY M.
Executed: 1986-04-01
Assignee
SPECTRUM CELLULAR COMMUNICATIONS CORPORATION, INC., A CORP OF TEXAS
2710 STEMMONS FREEWAY, SUITE 800 NORTH TOWER, DALLAS, TEXAS, 75207
Covered Property
(1)
Cellular Telephone Data Communication System and Method
Patent:
4,697,281 →
Application:
06/839,564 →
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name Effective on 09/22/1987
Aug 8, 1991
From: SPECTRUM CELLULAR CORPORATION, A CORP. OF DE
To: SPECTRUM INFORMATION TECHNOLOGIES, INC.
Reel/Frame 005864/0522 →
Merger
Aug 8, 1991
From: SPECTRUM CELLULAR COMMUNICATIONS CORPORATION, A CORP. OF TX
To: SPECTRUM CELLULAR CORPORATION
Reel/Frame 005864/0528 →