Patent Assignment Details
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For pending or abandoned applications please consult USPTO staff.
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| Reel/Frame: | 006289/0082 | |
| Pages: | 5 |
| | Recorded: | 10/29/1992 | | |
| 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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09/06/1994
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Application #:
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07943100
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Filing Dt:
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09/10/1992
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Title:
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ISOLATION WASHPIPE FOR EARTH WELL COMPLETIONS AND METHOD FOR USE IN GRAVEL PACKING A WELL
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Assignee
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| PATENT DEPARTMENT |
| P.O. BOX 819052 |
| DALLAS, TEXAS 75381-9052 |
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Correspondence name and address
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ROLAND O. COX
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PATENT DEPARTMENT 1-E-135
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OTIS ENGINEERING CORPORATION
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P.O. BOX 819052
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DALLAS, TEXAS 75381-9052
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