Patent Assignment Details
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| Reel/Frame: | 004898/0537 | |
| Pages: | 1 |
| | Recorded: | 04/11/1988 | | |
| Conveyance: | ASSIGNMENT OF ASSIGNORS INTEREST. |
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Total properties:
1
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Patent #:
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Issue Dt:
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11/14/1989
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Application #:
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07156831
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Filing Dt:
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02/17/1988
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Title:
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APPARATUS FOR DRILLING A CURVED BOREHOLE
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Assignee
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| 3000 NORTH BELT EAST |
| HOUSTON, TEXAS 77032 |
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Correspondence name and address
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WILLIAM E. JOHNSON, JR.
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BROWNING, BUSHMAN, ZAMECKI & ANDERSON
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5718 WESTHEIMER, STE. 1800
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HOUSTON, TX 77057
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