Patent Assignment Abstract of Title
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Total Assignments:
3
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Patent #:
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Issue Dt:
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10/17/1989
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Application #:
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07222139
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Filing Dt:
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07/21/1988
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Inventor:
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CHARLES E. HIXON
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Title:
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METHOD AND APPARATUS FOR RETAINING ROLLER CONE OF DRILL BIT
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST.
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| MARGARET E. ANDERSON |
| BROWNING, BUSHMAN, ZAMECKI & ANDERSON |
| 5718 WESTHEIMER, SUITE 1800 |
| HOUSTON, TX 77057 |
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Assignment:
2
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ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
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| 406 N. MAIN STREET KINGFISHER, OK 73750 |
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| MARGARET E. ANDERSON |
| BROWNING, BUSHMAN, ANDERSON & BROOKHART |
| 5718 WESTHEIMER, STE. 1800 |
| HOUSTON, TX 77057 |
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Assignment:
3
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ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
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| 1400 73RD AVE. NE |
| MINNEAPOLIS, MINNESOTA 55432 |
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| SCHWEGMAN, LUNDBERG, WOESSNER & ET AL. |
| PETER C. MAKI |
| P.O BOX 2938 |
| MINNEAPOLIS, MN 55402 |
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