Patent Assignment Details
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| Reel/Frame: | 005128/0390 | |
| Pages: | 1 |
| | Recorded: | 06/27/1989 | | |
| 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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06/12/1990
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Application #:
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07360043
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Filing Dt:
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06/01/1989
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Title:
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COPOLYIMIDE GAS SEPARATION MEMBRANES DERIVED FROM SUBSTITUTED METHYLENE DIANILINES AND UNSUBSTITUTED DIAMINES
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Correspondence name and address
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FRANK C. HILBERG, JR.
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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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