Patent Assignment Details
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| Reel/Frame: | 004757/0564 | |
| Pages: | 1 |
| | Recorded: | 09/14/1987 | | |
| 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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10/04/1988
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Application #:
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07076727
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Filing Dt:
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07/23/1987
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Title:
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DRY BLENDING PROCESS FOR THE QUATERNIZATION OF POLYVINYL ALCOHOL
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Assignee
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| A CORP. OF DE |
| WLMINGTON, DELAWARE |
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Correspondence name and address
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PAUL R. STEYERMARK
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PATENT DIVISION
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LEGAL DEPARTMENT
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E. I. DU PONT DE NEMOURS & CO.
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WILMINGTON, DE 19898
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