Patent Assignment
Reel/Frame 003950/0314
Assignment of Assignors Interest. Effective. 9-21-77
Recorded: 1982-02-22
Pages: 5
Assignor
VANN, ROY R.
Executed: 1982-02-17
Assignee
Covered Properties
(12)
Positive Tubing Release Coupling
Patent:
4,066,282 →
Application:
05/691,384 →
Gas Power Operated Hand Held Acoustic Devices
Patent:
3,758,731 →
Application:
05/116,948 →
Sand Consolidation Method
Patent:
4,009,757 →
Application:
05/546,802 →
High Temperature Perforating Method
Patent:
3,912,013 →
Application:
05/522,529 →
Releasable Coupling
Patent:
3,966,236 →
Application:
05/517,391 →
High Temperature Perforating Apparatus
Patent:
3,990,507 →
Application:
05/622,427 →
Method and Apparatus for Determining Communication of Perforated Zone with a Second Zone
Patent:
3,848,124 →
Application:
05/315,605 →
Marker for Cemented Casing
Patent:
3,835,317 →
Application:
05/317,648 →
Select Fire Jet Perforating Apparatus
Patent:
3,717,095 →
Application:
05/150,304 →
Method and Apparatus for Determining Communication of a Perforated Zon E with a Second Zone
Patent:
3,710,114 →
Application:
05/109,381 →
Tool Mounting Means for Agriculture Implements
Patent:
3,706,344 →
Application:
05/080,991 →
Positive Tubing Release Coupling
Patent:
4,066,282 →
Application:
05/691,384 →
Related Assignments
(8)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignors Interest.
Mar 8, 1984
From: VANN, ROY R, SR.
To: PEABODY INTERNATIONAL CORPORATION, A DE CORP.
Reel/Frame 004231/0873 →
Assignment of Assignors Interest.
Mar 8, 1984
From: PEABODY INTERNATIONAL CORPORATION
To: GEO INTERNATIONAL CORPORATION
Reel/Frame 004231/0865 →
Assignment of Assignors Interest.
Mar 8, 1984
From: GEO INTERNATIONAL CORPORATION
To: GEO VANN, INC., A NM CORP.
Reel/Frame 004231/0869 →
Assignment of Assignors Interest.
May 16, 1986
From: PEABODY INTERNATIONAL CORPORATION
To: GEO INTERNATIONAL CORPORATION
Reel/Frame 004555/0052 →
Assignor Herby Quitclaim, Sell and Assign All Right, Title and Interest in Saide Patents to Assignee. (See Record for Details)
Aug 4, 1986
From: PEABODY INTERNATIONAL CORPORATION
To: GEO INTERNATIONAL CORPORATION
Reel/Frame 004600/0565 →
Assignor Hereby Quitclaim, Sell and Assign All Right, Title and Interest in Said Patents to Assignee. (Se Record for Details)
Aug 4, 1986
From: GEO INTERNATIONAL CORPORATION, A CORP. OF DE.
To: GEO VANN, INC., A CORP. OF MEXICO
Reel/Frame 004600/0570 →
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 →