Patent Assignment Abstract of Title
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Total Assignments:
2
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Patent #:
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Issue Dt:
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07/14/1992
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Application #:
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07708854
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Filing Dt:
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05/31/1991
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Inventors:
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JAMES R. HALL, CARY A. MAURSTAD
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Title:
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EARTH BORING BIT WITH PROTECTED SEAL MEANS
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST.
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| P.O. BOX 2539 |
| HOUSTON, TEXAS 77252 |
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| ROBERT A. FELSMAN |
| 2600 CONTINENTAL PLAZA |
| 777 MAIN STREET |
| FORT WORTH, TX 76102 |
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Assignment:
2
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ASSIGNMENT OF ASSIGNORS INTEREST.
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| P.O. BOX 2539 |
| HOUSTON, TEXAS 77252-2539 |
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| ROBERT A. FELSMAN |
| 2600 CONTINENTAL PLAZA |
| 777 MAIN STREET |
| FORT WORTH, TX 76102 |
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