Patent Assignment Details
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For pending or abandoned applications please consult USPTO staff.
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| Reel/Frame: | 006320/0017 | |
| Pages: | 3 |
| | Recorded: | 10/02/1992 | | |
| 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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06/07/1994
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Application #:
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07955816
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Filing Dt:
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10/02/1992
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Title:
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EXPLOSIVELY OPENED PRODUCTION VALVE INCLUDING A FRANGIBLE BREAKUP ELEMENT OPERATED BY TUBING PRESSURE OR RATHOLE PRESSURE OR BOTH
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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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ATTN: PATENT COUNSEL
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P.O. BOX 2175, 5000 GULF FREEWAY
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HOUSTON, TX 77252-2175
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