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: | 006608/0588 | |
| Pages: | 16 |
| | Recorded: | 07/15/1993 | | |
Conveyance: | CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). |
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Total properties:
4
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Patent #:
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Issue Dt:
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04/17/1984
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Application #:
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06385615
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Filing Dt:
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06/07/1982
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Title:
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UNITARY FLOAT VALVE AND WIPING PLUG RETAINER
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Patent #:
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Issue Dt:
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05/29/1984
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Application #:
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06385616
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Filing Dt:
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06/07/1982
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Title:
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METHOD AND APPARATUS FOR WELL CEMENTING THROUGH A TUBULAR MEMBER
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Patent #:
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Issue Dt:
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07/30/1985
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Application #:
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06547408
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Filing Dt:
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10/31/1983
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Title:
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WELL CONDUIT CENTRALIZER
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Patent #:
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Issue Dt:
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02/10/1987
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Application #:
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06765798
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Filing Dt:
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08/15/1985
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Title:
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SEGMENTED CONCENTRIC CENTRALIZER
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Assignee
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3900 ESSEX LANE, #800 |
HOUSTON, TEXAS 77027 |
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Correspondence name and address
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CARL A. ROWOLD
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P.O. BOX 4740
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3900 ESSEX, #1200
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HOUSTON, TX 77027
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