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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05/19/1987
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Application #:
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06733435
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Filing Dt:
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05/13/1985
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Inventor:
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BRUCE H. BURR
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Title:
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EARTH BORING BIT WITH IMPROVED RIGID FACE SEAL ASSEMBLY
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST.
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| P.O. BOX 2539 |
| HOUSTON, TEXAS 77001 |
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| ROBERT A. FELSMAN |
| PATENTS AND TECHNOLOGY MANAGEMENT |
| P. O. BOX 2539 |
| HOUSTON, TX 77001 |
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Assignment:
2
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CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). EFFECTIVE OCTOBER 11, 1988 (DELAWARE)
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| FELSMAN, BRADLEY, GUNTER & DILLON |
| 2600 CONTINENTAL PLAZA |
| 777 MAIN STREET |
| FORT WORTH, TX 76102 |
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Assignment:
3
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CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). EFFECTIVE OCTOBER 11, 1988 (DELAWARE)
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| FELSMAN, BRADLEY, GUNTER & DILLON |
| 2600 CONTINENTAL PLAZA |
| 777 MAIN STREET |
| FORT WORTH, TX 76102 |
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