Patent Assignment
Reel/Frame 003950/0319
Assignment of Assignors Interest.
Recorded: 1982-02-22
Pages: 5
Assignor
VANN TOOL CO., INC., A CORP. OF NM.
Executed: 1982-02-17
Assignee
GEO VANN, INC., A CORP. OF NM.
HOUSTON, TEXAS
Covered Properties
(2)
Packer Actuated Vent Assembly
Patent:
3,871,448 →
Application:
05/382,958 →
Downhole Packer Actuated Vent Assembly
Patent:
3,931,855 →
Application:
05/517,390 →
Related Assignments
(3)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignors Interest.
May 16, 1986
From: PEABODY INTERNATIONAL CORPORATION
To: GEO INTERNATIONAL CORPORATION
Reel/Frame 004555/0052 →
Change of Name
Aug 28, 1986
From: GEO VANN, INC.
To: VANN SYSTEMS INC.
Reel/Frame 004606/0291 →
Merger
Aug 28, 1986
From: VANN SYSTEMS, INC.
To: HALLIBURTON COMPANY
Reel/Frame 004606/0300 →