Patent Assignment Abstract of Title
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Total Assignments:
5
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Patent #:
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Issue Dt:
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06/17/1986
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Application #:
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06571410
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Filing Dt:
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01/17/1984
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Inventor:
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ERIC F. DRAKE
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Title:
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ROTARY DRILL BIT, PARTS THEREFOR, AND METHOD OF MANUFACTURING THEREOF
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST.
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| A CORP OF TEXAS |
| HOUSTON, TEXAS |
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| EUGENE N. RIDDLE |
| VINSON & ELKINS |
| 3300 FIRST CITY TOWER |
| 1001 FANNIER STREET |
| HOUSTON,TX 77002-6760 |
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Assignment:
2
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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:
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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