Patent Assignment Details
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Reel/Frame: | 005131/0906 | |
| Pages: | 2 |
| | Recorded: | 10/02/1989 | | |
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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12/18/1990
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Application #:
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07415677
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Filing Dt:
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10/02/1989
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Title:
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SUBSURFACE WELL SAFETY VALVE WITH LIGHT WEIGHT COMPONENTS
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Assignee
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A CORP. OF TX |
HOUSTON, TEXAS |
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Correspondence name and address
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IRELL & MANELLA
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545 MIDDLEFIELD RD., SUITE 200
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MENLO PARK, CA 94025-3471
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