Patent Assignment Details
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| Reel/Frame: | 005441/0800 | |
| Pages: | 24 |
| | Recorded: | 06/04/1990 | | |
| Conveyance: | RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). |
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Total properties:
7
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04487817
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01/13/1970
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04503047
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10/23/1965
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Title:
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APPARATUS FOR HANGING WELL BORE CASING
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04504253
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04575335
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04579728
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05472303
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05636064
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Correspondence name and address
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JANE S. BERMAN
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MCDERMOTT, WILL & EMERY
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227 WEST MONROE STREET
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CHICAGO, IL 60606-5096
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