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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10/27/1998
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Application #:
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08763201
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Filing Dt:
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12/10/1996
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Inventors:
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PETER L. ZALESKI, DAVID J. DERWIN, DONALD J. WEINTRITT, GEORGE W. RUSSELL
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Title:
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DRILLING FLUID LOSS PREVENTION AND LUBRICATION ADDITIVE
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
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10 SOUTH RIVERSIDE PLAZA |
CHICAGO, ILLINOIS 60606 |
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COOK, ALEX, MCFARRON, MANZO, ET AL. |
STEPHEN B. HELLER, ESQ |
200 WEST ADAMS STREET, SUITE 2850 |
CHICAGO, IL 60606 |
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