Patent Assignment Details
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| Reel/Frame: | 005256/0492 | |
| Pages: | 5 |
| | Recorded: | 03/02/1990 | | |
| 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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11/05/1991
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Application #:
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07490005
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Filing Dt:
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03/02/1990
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Title:
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PROCESS FOR MAKING NON-POROUS MICRON-SIZED HIGH PURITY SILICA
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Assignee
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| 950 WINTER ST. |
| A CORP. OF DE. |
| WALTHAM,, MASSACHUSETTS 02254-9073 |
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Correspondence name and address
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DAVID J. KORIS
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CABOT CORP.,
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157 CONCORD RD.,
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BILLERICA, MA 01821
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