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Patent Assignment Abstract of Title
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Total Assignments: 5
Patent #:
Issue Dt:
01/03/1989
Application #:
07162707
Filing Dt:
03/01/1988
Inventors:
IGOR KRASNOV, HENRY C. CALK JR., TAYLOR L. JONES, BILLY L. MC DOUGAL
Title:
GATE TYPE KELLY COCK VALVE
Assignment: 1
Reel/Frame:
004846/0288Recorded: 03/01/1988Pages: 2
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor:
Exec Dt:
02/09/1988
Assignee:
7135 ARDMORE STREET
A CORP. OF DE
HOUSTON, TEXAS 77054
Correspondent:
JAMES E. BRADLEY
PATENTS & TECHNOLOGY MANAGEMENT
HUGHES TOOL CO.
P. O. BOX 2539
HOUSTON, TX 77001
Assignment: 2
Reel/Frame:
004849/0168Recorded: 03/01/1988Pages: 2
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor:
Exec Dt:
02/09/1988
Assignee:
7135 ARDMORE STREET
A CORP. OF DE
HOUSTON, TEXAS 77054
Correspondent:
JAMES E. BRADLEY
PATENTS & TECHNOLOGY MANAGEMENT
HUGHES TOOL CO.
P. O. BOX 2539
HOUSTON, TX 77242-2539
Assignment: 3
Reel/Frame:
004849/0172Recorded: 03/01/1988Pages: 2
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor:
Exec Dt:
02/09/1988
Assignee:
7135 ARDMORE STREET
A CORP. OF DE
HOUSTON, TEXAS 77054
Correspondent:
JAMES E. BRADLEY
PATENTS & TECHNOLOGY MANAGEMENT
HUGHES TOOL CO.
P. O. BOX 2539
HOUSTON, TX 77242-2539
Assignment: 4
Reel/Frame:
004849/0174Recorded: 03/01/1988Pages: 2
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor:
Exec Dt:
02/09/1988
Assignee:
7135 ARDMORE STREET
A CORP. OF DE
HOUSTON, TEXAS 77054
Correspondent:
JAMES E. BRADLEY
PATENTS & TECHNOLOGY MANAGEMENT
HUGHES TOOL CO.
P. O. BOX 2539
HOUSTON, TX 77242-2539
Assignment: 5
Reel/Frame:
005211/0237Recorded: 12/05/1989Pages: 18
Conveyance:
SECURITY INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
11/28/1989
Assignee:
Correspondent:
JEAN A. MCNAMARA
BAKER & BOTTS
ONE SHELL PLAZA
910 LOUISIANA, HOUSTON, TEXAS 77002-4995

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