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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02/13/1990
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Application #:
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07277616
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Filing Dt:
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11/29/1988
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Inventors:
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ERIC C. SULLIVAN, BRUCE H. BURR
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Title:
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EARTH BORING BIT WITH CONVERGENT CUTTER BEARING
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST.
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| P.O. BOX 2539 |
| HOUSTON, TEXAS 77252-2539 |
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| ROBERT A. FELSMAN |
| CHIEF PATENT COUNSEL |
| PATENTS & TECHNOLOGY MANAGEMENT |
| HUGHES TOOL COMPANY, P. O. BOX 2539 |
| HOUSTON, TX 77252 |
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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 |
| CHIEF PATENT COUNSEL |
| PATENTS & TECHNOLOGY MANAGEMENT |
| HUGHES TOOL COMPANY, P. O. BOX 2539 |
| HOUSTON, TX 77252 |
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