Patent Assignment Details
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| Reel/Frame: | 004986/0817 | |
| Pages: | 2 |
| | Recorded: | 12/16/1988 | | |
| 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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12/19/1989
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Application #:
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07285585
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Filing Dt:
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12/16/1988
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Title:
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SUBSEA WELLHEAD WITH ANNULUS COMMUNICATING SYSTEM
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Assignee
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| 13013 NORTHWEST FREEWAY |
| HOUSTON, TEXAS 77040 |
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Correspondence name and address
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JACK R. SPRINGGATE
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C/O VINSON & ELKINS
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2924 FIRST CITY TOWER
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1001 FANNIN STREET
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HOUSTON, TX 77002-6760
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