IP Library Assignment 005241/0003
Patent Assignment
Reel/Frame 005241/0003

Assignment of Assignors Interest.

Recorded: 1990-02-26 Pages: 2
Assignors
SANDERS, JOE I.
Executed: 1990-02-09
SHUCK, EDWARD L.
Executed: 1990-02-12
Assignee
HALLIBURTON GEOPHYSICAL SERVICES, INC.
A CORP. OF DE, HOUSTON, TEXAS
Covered Property (1)
Reinforcement of Surface Seismic Wavefields
Patent: 4,935,903 →
Application: 07/398,813 →
Related Assignments (3)
Other recorded transfers of the patent in this record — the chain of ownership.
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 Mar 21, 2002
From: WESTERN ATLAS INTERNATIONAL, INC.
To: WESTERNGECO, L.L.C.
Reel/Frame 012729/0567 →