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: | 006656/0956 | |
| Pages: | 4 |
| | Recorded: | 08/26/1993 | | |
| Conveyance: | ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). |
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Total properties:
11
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Patent #:
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Issue Dt:
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09/22/1987
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Application #:
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06814330
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Filing Dt:
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12/30/1985
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Title:
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METHOD OF REMANUFACTURING A ROCK DRILL BIT
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Patent #:
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Issue Dt:
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12/08/1987
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Application #:
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06890718
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Filing Dt:
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07/25/1986
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Title:
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ROCK BIT ASSEMBLY METHOD
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Patent #:
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Issue Dt:
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09/13/1988
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Application #:
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06925693
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Filing Dt:
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10/29/1986
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Title:
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APPARATUS FOR ASSEMBLING ROCK BITS
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Patent #:
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Issue Dt:
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04/19/1988
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Application #:
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06930420
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Filing Dt:
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11/14/1986
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Title:
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THRUST BEARING AND CONE LOCKING ASSEMBLY FOR ROCK DRILL BIT
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Patent #:
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Issue Dt:
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09/12/1989
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Application #:
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07104785
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Filing Dt:
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10/05/1987
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Title:
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PRESSURE RELIEF VALVE FOR ROLLER BIT
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Patent #:
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Issue Dt:
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10/17/1989
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Application #:
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07222139
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Filing Dt:
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07/21/1988
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Title:
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METHOD AND APPARATUS FOR RETAINING ROLLER CONE OF DRILL BIT
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Patent #:
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Issue Dt:
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07/24/1990
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Application #:
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07316770
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Filing Dt:
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02/28/1989
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Title:
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LUBRICATION SYSTEM FOR AN EARTH BORING DRILL BIT AND METHODS FOR FILLING AND RETROFIT INSTALLAING THEREOF
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Patent #:
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Issue Dt:
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04/03/1990
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Application #:
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07360106
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Filing Dt:
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06/01/1989
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Title:
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BEAM WELDING PROCESS
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Patent #:
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Issue Dt:
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03/31/1992
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Application #:
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07631876
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Filing Dt:
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12/21/1990
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Title:
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ROCK DRILL BIT LUBRICANT CIRCULATING SYSTEM
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Patent #:
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Issue Dt:
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03/02/1993
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Application #:
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07812748
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Filing Dt:
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12/24/1991
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Title:
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ROCK BIT MANUFACTURING METHOD
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Patent #:
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Issue Dt:
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04/13/1993
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Application #:
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07881412
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Filing Dt:
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05/11/1992
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Title:
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ROCK BIT MANUFACTURING METHOD
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Assignee
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| 406 N. MAIN STREET KINGFISHER, OK 73750 |
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Correspondence name and address
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MARGARET E. ANDERSON
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BROWNING, BUSHMAN, ANDERSON & BROOKHART
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5718 WESTHEIMER, STE. 1800
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HOUSTON, TX 77057
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