Patent Assignment Details
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Reel/Frame: | 006168/0309 | |
| Pages: | 5 |
| | Recorded: | 06/19/1992 | | |
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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03/09/1993
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Application #:
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07877340
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Filing Dt:
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05/01/1992
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Title:
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WELLBORE APPARATUS INCLUDING A RATHOLE PRESSURE BALANCED DIFFERENTIAL PRESSURE FIRING SYSTEM
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Assignee
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5000 GULF FREEWAY |
P.O. BOX 2175 |
HOUSTON, TEXAS 77023 |
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Correspondence name and address
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SCHLUMBERGER WELL SERVICES
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JOHN H. BOUCHARD
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ATTN: PATENT COUNSEL
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P.O. BOX 2175
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HOUSTON, TX 77252-2175
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