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: | 004600/0409 | |
| Pages: | 9 |
| | Recorded: | 03/14/1986 | | |
| Conveyance: | ASSIGNMENT OF ASSIGNORS INTEREST. |
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Total properties:
8
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Patent #:
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Issue Dt:
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02/02/1982
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Application #:
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06186204
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Filing Dt:
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09/10/1980
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Title:
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DRILL CUTTER BIT
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Patent #:
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Issue Dt:
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11/02/1982
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Application #:
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06213892
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Filing Dt:
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12/08/1980
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Title:
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CUTTER MOUNTING AND APPARATUS AND METHOD FOR A DRILL BIT
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Patent #:
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Issue Dt:
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11/02/1982
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Application #:
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06213892
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Filing Dt:
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12/08/1980
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Title:
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CUTTER MOUNTING AND APPARATUS AND METHOD FOR A DRILL BIT
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Patent #:
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Issue Dt:
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03/29/1983
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Application #:
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06238003
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Filing Dt:
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02/25/1981
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Title:
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COUPLING STRUCTURE FOR A COMPOUND DRILL STEM
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Patent #:
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Issue Dt:
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12/15/1987
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Application #:
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06250290
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Filing Dt:
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04/02/1981
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Title:
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RETAINER DEVICE FOR DRILL BIT
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Patent #:
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Issue Dt:
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11/06/1984
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Application #:
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06302800
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Filing Dt:
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09/16/1981
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Title:
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RETAINER DEVICE FOR AUGER, ROOF AND THE LIKE TYPE BITS
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Patent #:
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Issue Dt:
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12/25/1984
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Application #:
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06438018
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Filing Dt:
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11/01/1982
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Title:
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WEAR COLLAR DEVICE FOR ROTATABLE CUTTER BIT
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Patent #:
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Issue Dt:
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10/02/1984
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Application #:
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06494080
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Filing Dt:
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05/12/1983
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Title:
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RETAINER SYSTEM FOR ROOF-MINE TOOL BIT
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Correspondence name and address
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HUGHES TOOL COMPANY
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P.O. BOX 2539
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HOUSTON, TX 77001
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