Patent Assignment Abstract of Title
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Total Assignments:
1
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Patent #:
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Issue Dt:
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04/13/2010
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Application #:
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11872069
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Filing Dt:
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10/15/2007
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Publication #:
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Pub Dt:
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04/16/2009
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Inventors:
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Timothy King Marvel, William Henry Sherwood JR., David A. Trevas, Michael R. Wells
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Title:
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SYSTEM, METHOD, AND APPARATUS FOR VARIABLE JUNK SLOT DEPTH IN DRILL BIT BODY TO ALLEVIATE BALLING
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Assignment:
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ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
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2929 ALLEN PARKWAY |
SUITE 2100 |
HOUSTON, TEXAS 77019-2118 |
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MICHAEL E. NOE, JR. |
PO BOX 61389 |
BRACEWELL & GIULIANI LLP |
HOUSTON, TX 77208-1389 |
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