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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05/24/1988
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Application #:
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06942906
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Filing Dt:
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12/17/1986
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Inventors:
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JOHN L. MOOREHEAD, RAY H. SHAW
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Title:
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BIT SEAT PROTECTOR DEVICE FOR DRILLING SYSTEMS OR THE LIKE
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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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HUGHES TOOL COMPANY |
P.O. BOX 2539 |
HOUSTON, TEXAS 77001 |
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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HUGHES TOOL COMPANY |
P.O. BOX 2539 |
HOUSTON, TX. 77001 |
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Assignment:
3
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ASSIGNMENT OF ASSIGNORS INTEREST.
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BURNS, DOANE, SWECKER & MATHIS |
WASHINGTON & PRINCE STREETS |
P.O. BOX 1404 |
ALEXANDRIA, VIRGINIA 22313-1404 |
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