Patent Assignment Details
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Reel/Frame: | 004206/0631 | |
| Pages: | 1 |
| | Recorded: | 01/09/1984 | | |
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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02/22/1983
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Application #:
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06285431
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Filing Dt:
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07/24/1981
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Title:
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NONPOLLUTING DRILLING FLUID COMPOSITION
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Assignee
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120 SOUTH CENTRAL AVE. |
ST. LOUIS, MISSOURI 63105 |
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Correspondence name and address
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HAVERSTOCK, GARRETT ET AL
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611 OLIVE ST.
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ST. LOUIS, MO 63101
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