Patent Assignment Abstract of Title
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Total Assignments:
9
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Patent #:
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Issue Dt:
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03/27/1990
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Application #:
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07312459
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Filing Dt:
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02/21/1989
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Inventor:
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DAVID E. PEARCE
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Title:
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MEANS FOR RETAINING ROLLER CUTTERS ON ROTARY DRILL BIT
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Assignment:
1
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MERGER (SEE DOCUMENT FOR DETAILS).
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| 7030 ARDMORE |
| HOUSTON, TEXAS 77054 |
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| SCHLUMBERGER OILFIELD SERVICES |
| JEFFERY E. DALY |
| 7211 N. GESSNER |
| HOUSTON, TEXAS 77040 |
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Assignment:
2
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ASSIGNMENT OF ASSIGNORS INTEREST.
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| EUGENE N. RIDDLE |
| DODGE, BUSH & MOSELEY |
| 950 ECHO LANE |
| SUITE 180 |
| HOUSTON, TX 77024 |
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Assignment:
3
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MERGER (SEE DOCUMENT FOR DETAILS).
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| 7030 ARDMORE |
| HOUSTON, TEXAS 77054 |
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| SCHLUMBERGER OILFIELD SERVICES |
| JEFFERY E. DALY |
| 7211 N. GESSNER |
| HOUSTON, TEXAS 77040 |
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Assignment:
4
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MERGER (SEE DOCUMENT FOR DETAILS).
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| 110 SCHLUMBERGER DRIVE, MD #1 |
| SUGAR LAND, TEXAS 77478 |
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| WILLIAMS, MORGAN & AMERSON, P.C. |
| KENNETH D. GOODMAN |
| 7676 HILLMONT, SUITE 250 |
| HOUSTON, TX 77040 |
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Assignment:
5
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ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
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| 5599 SAN FELIPE |
| SUITE 1600 |
| HOUSTON, TEXAS 77054 |
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| BRIGITTE JEFFERY |
| 200 GILLINGHAM LANE |
| SUGAR LAND, TX 77478 |
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Assignment:
6
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CHANGE OF NAME (SEE DOCUMENT FOR DETAILS).
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| 400 N. SAM HOUSTON PARKWAY EAST |
| SUITE 900 |
| HOUSTON, TEXAS 77060 |
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| JEFFERY E. DALY |
| GRANT PRIDECO, L.P. |
| 400 N. SAM HOUSTON PARKWAY E., SUITE 900 |
| HOUSTON, TX 77060 |
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Assignment:
7
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| 1000 LOUISIANA ST., 3RD FLOOR |
| MAIL CODE MAC T5002-031 |
| HOUSTON, TEXAS 77002 |
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| CONSTANCE GALL RHEBERGEN |
| P.O. BOX 61389 |
| HOUSTON, TX 77208-1389 |
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Assignment:
8
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RELEASE OF PATENT SECURITY AGREEMENT
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| 400 N. SAM HOUSTON PARKWAY EAST |
| SUITE 900 |
| HOUSTON, TEXAS 77060 |
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| JAN K. SIMPSON |
| FULBRIGHT & JAWORSKI L.L.P. |
| FULBRIGHT TOWER |
| 1301 MCKINNEY, SUITE 5100 |
| HOUSTON, TX 77010-3095 |
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Assignment:
9
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CORRECTIVE ASSIGNMENT TO CORRECT THE RECEIVING PARTIES NAME, PREVIOUSLY RECORDED ON REEL 018463 FRAME 0103.
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| 400 N. SAM HOUSTON PARKWAY EAST |
| SUITE 900 |
| HOUSTON, TEXAS 77060 |
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| JAN K. SIMPSON |
| FULBRIGHT & JAWORSKI L.L.P. |
| FULBRIGHT TOWER |
| 1301 MCKINNEY, SUITE 5100 |
| HOUSTON, TX 77010-3096 |
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