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Patent Assignment Abstract of Title
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Total Assignments: 7
Patent #:
4838379
Issue Dt:
06/13/1989
Application #:
07113138
Filing Dt:
10/23/1987
Inventor:
PETER W. MAXWELL
Title:
GEOPHONE IMPLANTING AND POSITIONING APPARATUS
Assignment: 1
Reel/Frame:
004818/0623Recorded: 12/31/1987Pages: 2
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor:
MAXWELL, PETER W.
Exec Dt:
12/21/1987
Assignee:
GEOSOURCE, INC., A CORP. OF TX
P.O. BOX 1936
FORTH WORTH, TEXAS 76101
Correspondent:
ANDREW J. DILLON
FELSMAN, BRADLEY & GUNTER
2850 CONTINENTAL PLAZA
777 MAIN ST.
FORT WORTH, TX 76102
Assignment: 2
Reel/Frame:
005206/0729Recorded: 01/09/1990Pages: 12
Conveyance:
MERGER (SEE DOCUMENT FOR DETAILS). EFFECTIVE DATE: 11/30/88, DELAWARE
Assignors:
GSI ACQ COMPANY A CORP. OF DE (MERGED INTO)
Exec Dt:
11/30/1988
GEOPHYSICAL SERVICE INC.
Exec Dt:
11/30/1988
Assignee:
HALLIBURTON GEOPHYSICAL SERVICES, INC. A CORP. OF DE
Correspondent:
ANDREW J. DILLON
FELSMAN, BRADLEY & GUNTER
2850 CONTINENTAL PLAZA
777 MAIN ST.
FORT WORTH, TX 76102
Assignment: 3
Reel/Frame:
006777/0052Recorded: 11/15/1993Pages: 11
Conveyance:
MERGER (SEE DOCUMENT FOR DETAILS).
Assignor:
HALLIBURTON GEOPHYSICAL SERVICES, INC.
Exec Dt:
11/10/1993
Assignee:
HALLIBURTON COMPANY
P.O. BOX 1431
1015 BOIS D'ARC
DUNCAN, OKLAHOMA 73536-0102
Correspondent:
HALLIBURTON ENERGY SERVICES
JAMES R. DUNZAN
P.O. BOX 1431
1015 BOIS D'ARC
DUNCAN, OKLAHOMA 73536-0102
Assignment: 4
Reel/Frame:
006970/0236Recorded: 03/28/1994Pages: 20
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
HALLIBURTON COMPANY
Exec Dt:
03/21/1994
Assignee:
WESTERN ATLAS INTERNATIONAL, INC.
10205 WESTHEIMER ROAD
HOUSTON, TEXAS 77042
Correspondent:
PAUL S. MADAN
WESTERN ATLAS INTERNATIONAL, INC.
10205 WESTHEIMER ROAD
HOUSTON, TX 77042
Assignment: 5
Reel/Frame:
007644/0138Recorded: 08/28/1995Pages: 41
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
WESTERN ATLAS INTERNATIONAL, INC.
Exec Dt:
06/30/1995
Assignee:
I/O EXPLORATION PRODUCTS, INC.
12300 PARC CREST DRIVE
STAFFORD, TEXAS 77477
Correspondent:
TIM HEADLEY
HAYNES AND BOONE, L.L.P.
4300 FIRST INTERSTATE BANK PLAZA
1000 LOUISIANA
HOUSTON, TX 77002
Assignment: 6
Reel/Frame:
007815/0841Recorded: 02/23/1996Pages: 56
Conveyance:
CORRECTED ASSIGNMENT
Assignor:
WESTERN ATLAS INTERNATIONAL, INC.
Exec Dt:
06/30/1995
Assignee:
I/O EXPLORATION PRODUCTS (U.S.A), INC.
12300 PARC CREST DRIVE
STAFFORD, TEXAS 77477
Correspondent:
HAYNES AND BOONE, L.L.P.
TIM HEADLEY
4300 FIRST INTERSTATE BANK PLAZA
1000 LOUISIANA
HOUSTON, TX 77002
Assignment: 7
Reel/Frame:
009245/0506Recorded: 06/08/1998Pages: 12
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
I/O EXPLORATION PRODUCTS (U.S.A.), INC.
Exec Dt:
02/12/1998
Assignee:
INPUT/OUTPUT, INC.
11104 WEST AIRPORT BLVD., SUITE 200
STAFFORD, TEXAS 77477
Correspondent:
HAYNES AND BOONE, L.L.P.
TIM HEADLEY
1000 LOUISIANA, SUITE 4300
HOUSTON, TX 77002-5012

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