IP Library Assignment 004600/0570
Patent Assignment
Reel/Frame 004600/0570

Assignor Hereby Quitclaim, Sell and Assign All Right, Title and Interest in Said Patents to Assignee. (Se Record for Details)

Recorded: 1986-08-04 Pages: 5
Assignor
Assignee
Covered Properties (2)
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 →
Related Assignments (7)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignors Interest. Effective. 9-21-77 Feb 22, 1982
From: VANN, ROY R.
To: GEO VANN, INC. A CORP. OF NEW MEXICO
Reel/Frame 003950/0314 →
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. Mar 8, 1984
From: VANN, ROY R, SR.
To: PEABODY INTERNATIONAL CORPORATION, A DE CORP.
Reel/Frame 004231/0873 →
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 →
Merger Aug 28, 1986
From: VANN SYSTEMS, INC.
To: HALLIBURTON COMPANY
Reel/Frame 004606/0300 →
Change of Name Aug 28, 1986
From: GEO VANN, INC.
To: VANN SYSTEMS INC.
Reel/Frame 004606/0291 →