Patent Assignment Details
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Reel/Frame: | 003931/0230 | |
| Pages: | 1 |
| | Recorded: | 11/06/1981 | | |
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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06/07/1983
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Application #:
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06304272
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Filing Dt:
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09/21/1981
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Title:
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GRINDING AIDS FOR GRANULAR BLAST FURNACE SLAG
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Assignee
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62 WHITTEMORE AVE. |
CAMBRIDGE 40, MASSACHUSETTS |
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Correspondence name and address
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W. L. BAKER
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PATENT DEPT.
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W. R. GRACE & CO.
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62 WHITTEMORE AVE.
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CAMBRIDGE, MA 02140
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