IP Library › Assignment 004130/0672
Patent Assignment
Reel/Frame 004130/0672

Assignment of Assignors Interest.

Recorded: 1983-03-21 Pages: 1
Assignor
COOGLER, JOHN M.
Executed: 1983-03-11
Assignee
Covered Property (1)
Tapered Geophone Spring
Patent: 4,458,344 →
Application: 06/477,483 →
Related Assignments (6)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignors Interest. Oct 16, 1989
From: G & H MANAGEMENT COMPANY
To: HALLIBURTON GEOPHYSICAL SERVICES, INC.
Reel/Frame 005252/0162 →
Change of Name November 13, 1988, Dealware Oct 16, 1989
From: GEOSOURCE, INC.
To: G & H MANAGEMENT COMPANY
Reel/Frame 005252/0167 →
Merger Nov 15, 1993
From: HALLIBURTON GEOPHYSICAL SERVICES, INC.
To: HALLIBURTON COMPANY
Reel/Frame 006777/0052 →
Assignment of Assignor's Interest Mar 28, 1994
From: HALLIBURTON COMPANY
To: WESTERN ATLAS INTERNATIONAL, INC.
Reel/Frame 006970/0236 →
Assignment of Assignor's Interest Aug 28, 1995
From: WESTERN ATLAS INTERNATIONAL, INC.
To: I/O EXPLORATION PRODUCTS, INC.
Reel/Frame 007644/0138 →
Corrected Assignment Feb 23, 1996
From: WESTERN ATLAS INTERNATIONAL, INC.
To: I/O EXPLORATION PRODUCTS (U.S.A), INC.
Reel/Frame 007815/0841 →