Patent Assignment Details
NOTE:Results display only for issued patents and published applications.
For pending or abandoned applications please consult USPTO staff.
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Reel/Frame: | 004679/0251 | |
| Pages: | 2 |
| | Recorded: | 03/12/1987 | | |
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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02/02/1988
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Application #:
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07024957
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Filing Dt:
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03/12/1987
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Title:
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SELF CLOSING EQUALIZING VALVE FOR A SUBSURFACE WELL SAFETY VALVE
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Correspondence name and address
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PATENT DEPARTMENT
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FULBRIGHT & JAWORSKI
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1301 MC KINNEY STREET
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HOUSTON, TX 77010
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