Patent Assignment Details
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| Reel/Frame: | 009745/0005 | |
| Pages: | 3 |
| | Recorded: | 02/04/1999 | | |
| Conveyance: | ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). |
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Total properties:
1
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Patent #:
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Issue Dt:
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01/23/2001
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Application #:
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09201533
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Filing Dt:
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11/30/1998
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Title:
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BEARING SEALING MEANS OF EARTH BORING BITS
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Assignee
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| GUANGHUA, QIANJIANG CITY |
| HUBEI, CHINA 43312 |
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Correspondence name and address
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WESTMAN, CHAMPLIN & KELLY, P.A.
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CHRISTOPHER R. CHRISTENSON
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INTERNATIONAL CENTRE
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900 SECOND AVENUE SOUTH
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MINNEAPOLIS, MN 55402
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