Patent Assignment Details
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| Reel/Frame: | 005112/0943 | |
| Pages: | 1 |
| | Recorded: | 08/07/1989 | | |
| 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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09/18/1990
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Application #:
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07374399
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Filing Dt:
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06/29/1989
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Title:
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METHOD OF CONTROLLING LOST CIRCULATION IN WELL DRILLING
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Assignee
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| 1000 SOUTH PINE |
| PONCA CITY, OKLAHOMA 74603 |
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Correspondence name and address
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RICHARD W. COLLINS
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PATENT & LICENSING DIVISION
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CONOCO INC.
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P.O. BOX 1267
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PONCA CITY, OK 74603
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