Patent Assignment Details
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Reel/Frame: | 004566/0048 | |
| Pages: | 2 |
| | Recorded: | 06/25/1986 | | |
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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04/12/1988
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Application #:
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06864163
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Filing Dt:
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05/16/1986
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Title:
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RAPID CYCLE ANNULUS PRESSURE RESPONSIVE TESTER VALVE
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Assignee
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A CORP OF DE |
DUNCAN, OKLAHOMA |
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Correspondence name and address
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JOSEPH A. WALKOWSKI
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HALLIBURTON SERVICES
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P. O. DRAWER 1431
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DUNCAN, OK 73536-0102
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