Patent Assignment Details
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| Reel/Frame: | 004691/0510 | |
| Pages: | 1 |
| | Recorded: | 04/15/1987 | | |
| 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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06/30/1987
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Application #:
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06857376
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Filing Dt:
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04/30/1986
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Title:
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PURIFICATION PROCESS FOR PURIFYING SILICA
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Assignee
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| 4-1, SHIBA-KOEN 2-CHOME MINATO-KU, |
| A CORP OF JAPAN |
| TOKYO, JAPAN |
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Correspondence name and address
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SHERMAN & SHALLOWAY
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413 NORTH WASHINGTON STREET
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ALEXANDRIA, VA 22314
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