Patent Assignment Details
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Reel/Frame: | 004875/0191 | |
| Pages: | 1 |
| | Recorded: | 02/05/1988 | | |
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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06/27/1989
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Application #:
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07152934
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Filing Dt:
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02/05/1988
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Title:
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HYDRAULIC LOCK ALLEVIATION DEVICE, WELL CEMENTING STAGE TOOL, AND RELATED METHODS
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Assignee
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1360 POST OAK BOULEVARD, SUITE 1000 |
HOUSTON, TEXAS 77227 |
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Correspondence name and address
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GUY MC CLUNG
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VADEN, EICKENROHT, THOMPSON & BOULWARE
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ONE RIVERWAY, SUITE 2420
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HOUSTON, TX 77056
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