Patent Assignment Assignor Details
NOTE:Results display only for issued patents and published applications.
For pending or abandoned applications please consult USPTO staff.
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Assignor Name :
CHANG, DAVID C. K.
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Total Assignments:
2
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Assignment:
1
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| Reel/Frame: | 003859/0923 | |
| Pages: | 1 |
| | Recorded: | 06/10/1981 | | |
| Conveyance: | ASSIGNMENT OF ASSIGNORS INTEREST. |
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Pat #
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Pub #
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Intl #
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App #
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NONE
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06240573
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Correspondence name and address
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HILMAR L. FRICKE
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LEGAL DEPT.
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E. I. DU PONT DE NEMOURS & CO.
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WILMINGTON, DE 19898
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Assignment:
2
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| Reel/Frame: | 004737/0019 | |
| Pages: | 1 |
| | Recorded: | 07/15/1987 | | |
| Conveyance: | ASSIGNMENT OF ASSIGNORS INTEREST. |
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Pat #
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Pub #
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Intl #
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App #
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NONE
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07052495
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Correspondence name and address
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HILMAR L. FRICKE
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PATENT DIVISION
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LEGAL DEPT.
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E.I. DU PONT DE NEMOURS & CO.
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WILMINGTON, DE 19898
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06/14/2024 04:17 AM
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