Patent Assignment Details
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For pending or abandoned applications please consult USPTO staff.
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| Reel/Frame: | 004447/0914 | |
| Pages: | 2 |
| | Recorded: | 08/12/1985 | | |
| Conveyance: | ASSIGNMENT OF ASSIGNORS INTEREST. |
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Total properties:
2
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Patent #:
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Issue Dt:
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11/13/1984
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Application #:
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06390598
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Filing Dt:
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06/21/1982
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Title:
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SOLID POLYAMINE-BASED FLUID LOSS CONTROL ADDITIVES
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Patent #:
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Issue Dt:
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02/11/1986
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Application #:
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06641333
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Filing Dt:
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08/16/1984
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Title:
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SOLID POLYAMINE-BASED FLUID LOSS CONTROL ADDITIVES
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Correspondence name and address
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DONALD E. EGAN
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COOK, WETZEL & EGAN, LTD
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135 S. LA SALLE ST., STE.2606
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CHICAGO, IL 60603
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