Patent Assignment Details
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| Reel/Frame: | 004510/0043 | |
| Pages: | 4 |
| | Recorded: | 02/10/1986 | | |
| 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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09/08/1987
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Application #:
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06820289
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Filing Dt:
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01/17/1986
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Title:
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HYDROSTATIC REFERENCED SAFETY-CIRCULATING VALVE
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Assignee
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| DUNCAN, STEPHENS, OKLAHOMA 73536 |
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Correspondence name and address
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JAMES R. DUZAN
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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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