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Patent Assignment Abstract of Title
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Total Assignments: 7
Patent #:
4589495
Issue Dt:
05/20/1986
Application #:
06601938
Filing Dt:
04/19/1984
Inventors:
FRIEDRICH H. LANGER, WILLIAM D. STRINGFELLOW
Title:
APPARATUS AND METHOD FOR INSERTING FLOW CONTROL MEANS INTO A WELL CASING
Assignment: 1
Reel/Frame:
004281/0600Recorded: 07/16/1984Pages: 4
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors:
LANGER, FRIEDRICH H.
Exec Dt:
07/06/1984
STRINGFELLOW, WILLIAM D.
Exec Dt:
07/06/1984
Assignee:
WEATHERFORD U.S., INC.
A DE CORP.
HOUSTON, TEXAS
Correspondent:
FREDERICK D. HAMILTON
VINSON & ELKINS
2900 FIRST CITY TOWER
HOUSTON, TX 77002-6760
Assignment: 2
Reel/Frame:
004281/0600Recorded: 07/16/1984Pages: 4
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors:
LANGER, FRIEDRICH H.
Exec Dt:
07/06/1984
STRINGFELLOW, WILLIAM D.
Exec Dt:
07/06/1984
Assignee:
WEATHERFORD U.S., INC.
A DE CORP.
HOUSTON, TEXAS
Correspondent:
FREDERICK D. HAMILTON
VINSON & ELKINS
2900 FIRST CITY TOWER
HOUSTON, TX 77002-6760
Assignment: 3
Reel/Frame:
004281/0600Recorded: 07/16/1984Pages: 4
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors:
LANGER, FRIEDRICH H.
Exec Dt:
07/06/1984
STRINGFELLOW, WILLIAM D.
Exec Dt:
07/06/1984
Assignee:
WEATHERFORD U.S., INC.
A DE CORP.
HOUSTON, TEXAS
Correspondent:
FREDERICK D. HAMILTON
VINSON & ELKINS
2900 FIRST CITY TOWER
HOUSTON, TX 77002-6760
Assignment: 4
Reel/Frame:
004442/0268Recorded: 08/01/1985Pages: 84
Conveyance:
SECURITY INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
WEATHERFORD U.S. , INC.
Exec Dt:
07/11/1985
Assignee:
FIRST CITY NATIONAL BANK OF HOUSTON, 1001 MAIN STREET, HOUSTON, TEXAS 77002, A NATIONAL BANKING ASSOCIATION OF TEXAS
Correspondent:
VINSON AND ELKINS
FIRST CITY TOWER
1001 FANNIN
HOUSTON, TEXAS 77002-6760
Assignment: 5
Reel/Frame:
005296/0388Recorded: 05/10/1990Pages: 87
Conveyance:
RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS).
Assignor:
FIRST CITY, TEXAS-HOUSTON, N.A. (SUCESSOR TO FIRST CITY NATIONAL BANK OF HOUSTON N.A.)
Exec Dt:
04/06/1990
Assignee:
WEATHERFORD U.S., INC.
1200 WEATHERFORD TOWER
1360 POST OAK BOULEVARD, A DE CORP.
HOUSTON, TEXAS 77056
Correspondent:
WEATHERFORD INTERNATIONAL INCORPORATED
1360 POST OAK BLVD., STE. 1000
P.O. BOX 27608
HOUSTON, TX 77227
Assignment: 6
Reel/Frame:
006677/0420Recorded: 09/07/1993Pages: 50
Conveyance:
SECURITY INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
WEATHERFORD U.S., INC.
Exec Dt:
03/31/1993
Assignee:
TEXAS COMMERCE BANK NATIONAL ASSOICATION
712 MAIN ST. HOUSTON, TX 77002
TEXAS
Correspondent:
MICHAEL WILSON
BAKER & BOTTS, L.L.P.
ONE SHELL PLAZA
910 LOUISIANA
HOUSTON, TX 77002
Assignment: 7
Reel/Frame:
006968/0187Recorded: 04/26/1994Pages: 9
Conveyance:
RELEASE FROM SECURITY AGREEMENT
Assignor:
TEXAS COMMERCE BANK NATIONAL ASSOCIATION
Exec Dt:
04/15/1994
Assignee:
WEATHERFORD U.S., INC.
1360 POST OAK BLVD., SUITE 1000
HOUSTON, TEXAS 77056
Correspondent:
FULBRIGHT & JAWORSKI L.L.P.
JOHN M. MINGS
1301 MCKINNEY
#5100
HOUSTON, TX 77010-3095

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