Patent Assignment
Reel/Frame 004970/0719
Assignment of Assignors Interest.
Recorded: 1988-10-28
Pages: 1
Assignee
GEOPHYSICAL SERVICE INC.
7800 BANNER, A CORP. OF DE, DALLAS, TEXAS, 75251
Covered Property
(1)
Method for True-Amplitude Dip Moveout Correction
Patent:
4,878,204 →
Application:
07/264,090 →
Related Assignments
(4)
Other recorded transfers of the patent in this record — the chain of ownership.
Merger
Dec 15, 1993
From: GSI ACQ COMPANY; GEOPHYSICAL SERVICES, INC.
To: HALLIBURTON GEOPHYSICAL SERVICES, INC.
Reel/Frame 006817/0213 →
Merger
Dec 15, 1993
From: HALLIBURTON LOGGING SERVICES, INC.; OTIS ENGINEERING CORPORATION; HALLIBURTON GEOPHYSICAL SERVICES, INC.; SIERRA GEOPHYSICS, INC.
To: HALLIBURTON COMPANY
Reel/Frame 006817/0225 →
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 →