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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12/25/1990
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Application #:
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07465509
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Filing Dt:
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01/16/1990
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Inventors:
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HAROLD A. SPENCER III, ROBERT R. GREEN
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Title:
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ANNULUS FLUID PRESSURE OPERATED TESTING VALVE
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST.
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| 3900 ESSEX LANE, STE. 1200 |
| A CORP. OF DE. |
| HOUSTON, TEXAS 77027 |
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| WILLIAM C. NORVELL, JR. |
| HUBBARD, THURMAN, TURNER & TUCKER |
| 6363 WOODWAY |
| SUITE 275 |
| HOUSTON, TX 77057 |
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