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: | 023551/0406 | |
| Pages: | 6 |
| | Recorded: | 11/20/2009 | | |
| Attorney Dkt #: | BSC4-49700-US(D5407-485) |
| Conveyance: | ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). |
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Total properties:
1
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Patent #:
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Issue Dt:
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07/31/2012
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Application #:
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12553429
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Filing Dt:
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09/03/2009
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Publication #:
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Pub Dt:
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03/03/2011
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Title:
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FRACTURING AND GRAVEL PACKING TOOL WITH UPPER ANNULUS ISOLATION IN A REVERSE POSITION WITHOUT CLOSING A WASH PIPE VALVE
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Assignee
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| 2929 ALLEN PARKWAY |
| HOUSTON, TEXAS 77019-2118 |
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Correspondence name and address
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DUANE MORRIS LLP - HOUSTON
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3200 SOUTHWEST FREEWAY
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SUITE 3150
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HOUSTON, TX 77027
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