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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02/01/1983
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Application #:
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06253787
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Filing Dt:
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04/13/1981
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Inventor:
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DONALD A. HENTZ
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Title:
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METHOD OF UPGRADING CRUDE SODIUM BENTONITE
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST.
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| 1002 GREENFIELD RD. |
| A CORP. OF DE |
| MONTGOMERY, ILLINOIS 60538 |
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| LEYDIG, VOIT, OSANN, MAYER & HOLT, LTD. |
| ONE IBM PLAZA, STE. 4600 |
| CHICAGO, IL 60611 |
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Assignment:
2
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ASSIGNMENT OF ASSIGNORS INTEREST.
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| 117 FIFTH AVE. |
| BELLE FOURCHE, SOUTH DAKOTA 57717 |
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| LEYDIG, VOIT, OSANN, MAYER & HOLT, LTD. |
| ONE IBM PLAZA, STE. 4600 |
| CHICAGO, IL 60611 |
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Assignment:
3
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ASSIGNMENT OF ASSIGNORS INTEREST.
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| HALLIBURTON SERVIECES, A DIV. OF |
| HALLIBURTON COMPANY |
| P.O. DRAWER 1431 |
| DUNCAN, OK. 73536-0102 |
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