Patent Assignment Details
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| Reel/Frame: | 006400/0404 | |
| Pages: | 4 |
| | Recorded: | 12/01/1992 | | |
| 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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01/04/1994
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Application #:
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07984024
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Filing Dt:
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12/01/1992
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Title:
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CIRCULATING VALVE APPARATUS AND DRILL STEM TEST METHOD ALLOWING SELECTIVE FLUID COMMUNICATION BETWEEN AN ABOVE PACKER ANNULUS AND A RATHOLE
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Assignee
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| P.O. BOX 2175 |
| 5000 GULF FREEWAY |
| HOUSTON, TEXAS 77023 |
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Correspondence name and address
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JOHN H. BOUCHARD
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SCHLUMBERGER TECHNOLOGY CORPORATION
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P.O. BOX 2175
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5000 GULF FREEWAY
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HOUSTON, TX 77252-2175
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