Patent Assignment
Reel/Frame 005575/0852
Assignment of Assignors Interest.
Recorded: 1991-01-07
Pages: 2
Assignor
CLARK, P. DEBORAH
Executed: 1990-12-20
Assignee
GTE SERVICE CORPORATION, A CORP. OF DE
1 STAMFORD FORUM, STAMFORD, CONNECTICUT, 06904
Covered Property
(1)
Schedule Management Method
Patent:
5,311,423 →
Application:
07/637,854 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name
Jul 21, 2009
From: GTE SERVICE CORPORATION
To: VERIZON CORPORATE SERVICES GROUP INC.
Reel/Frame 022980/0586 →
Assignment of Assignor's Interest
Dec 1, 2009
From: VERIZON CORPORATE SERVICES GROUP INC.
To: VERIZON PATENT AND LICENSING INC.
Reel/Frame 023586/0153 →
Assignment of Assignor's Interest
May 21, 2010
From: VERIZON PATENT AND LICENSING INC.
To: CILSTAR RESEARCH LLC
Reel/Frame 024424/0107 →