Patent Assignment Details
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Reel/Frame: | 008772/0248 | |
| Pages: | 2 |
| | Recorded: | 10/31/1997 | | |
Conveyance: | ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). |
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Total properties:
1
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Patent #:
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Issue Dt:
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03/30/1999
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Application #:
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08570623
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Filing Dt:
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12/11/1995
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Title:
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DRILLING COMPOSITIONS AND METHODS
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Assignee
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3000 N. SAM HOUSTON PKWY. EAST |
HOUSTON, TEXAS 77032 |
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Correspondence name and address
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BROWNING BUSHMAN
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WILLIAM E. JOHNSON, JR.
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5718 WESTHEIMER, SUITE 1800
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HOUSTON, TX 77057
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