Patent Assignment Details
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| Reel/Frame: | 005850/0223 | |
| Pages: | 4 |
| | Recorded: | 09/16/1991 | | |
| 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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04/06/1993
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Application #:
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07760584
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Filing Dt:
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09/16/1991
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Title:
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DRILL BIT AND METHOD FOR REDUCING FORMATION FLUID INVASION AND FOR IMPROVED DRILLING IN PLASTIC FORMATIONS
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Assignee
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| A CORPORATION OF DE 3900 ESSEX LANE, STE. 1200 |
| HOUSTON TX |
| 77027 |
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Correspondence name and address
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ALAN T. MCCOLLON
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MARGER JOHNSON MCCOLLOM & STOLOWITZ, INC
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621 S.W. MORRISON ST., STE. 650
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PORTLAND, OR 97205
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