Patent Assignment Details
NOTE:Results display only for issued patents and published applications.
For pending or abandoned applications please consult USPTO staff.
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| Reel/Frame: | 009350/0978 | |
| Pages: | 9 |
| | Recorded: | 07/31/1998 | | |
| Conveyance: | ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). |
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Total properties:
7
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Patent #:
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Issue Dt:
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03/17/1981
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Application #:
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05907485
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Filing Dt:
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05/19/1978
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Title:
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ROTARY DRILL BIT HAVING A SOLID FORGED, UNITARY BODY
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Patent #:
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Issue Dt:
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03/24/1981
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Application #:
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06005396
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Filing Dt:
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01/22/1979
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Title:
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FILAMENT WOUND BEARING
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Patent #:
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Issue Dt:
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10/27/1981
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Application #:
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06083988
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Filing Dt:
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10/11/1979
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Title:
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CABLE TOOL WITH CIRCULATING DRILL STEM
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Patent #:
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Issue Dt:
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06/08/1982
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Application #:
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06138079
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Filing Dt:
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04/07/1980
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Title:
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METHOD FOR MANUFACTURING A ROTARY DRILL BIT HAVING A SOLID FORGED, UNITARY BODY
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Patent #:
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Issue Dt:
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06/05/1984
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Application #:
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06314784
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Filing Dt:
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10/26/1981
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Title:
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BEARING SEAL FOR ROTATING CUTTER DRILL BIT
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Patent #:
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Issue Dt:
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08/16/1988
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Application #:
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07071157
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Filing Dt:
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07/08/1987
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Title:
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ASYMMETRICAL ROTARY CONE BIT
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Patent #:
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Issue Dt:
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08/31/1999
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Application #:
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08878622
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Filing Dt:
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06/19/1997
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Title:
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ROCK BIT WITH IMPROVED THRUST FACE
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Assignee
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| BRANCH OPERATIONS |
| 565 FIFTH AVENUE, 5TH FLOOR |
| NEW YORK, NEW YORK 10017 |
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Correspondence name and address
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ANDREWS & KURTH, L.L.P.
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LINDA DOLE
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600 TRAVIS STREET
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HOUSTON, TX 77002
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