Patent Assignment Abstract of Title
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Total Assignments:
1
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Patent #:
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Issue Dt:
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11/08/1994
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Application #:
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07964673
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Filing Dt:
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10/21/1992
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Inventors:
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ROBERT G. UPTON, MICHAEL E. HOOPER, GARY PORTWOOD, JERRY PYKA, RANDY JOHNSTON et al
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Title:
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COMPOSITE SEAL FOR ROTARY CONE ROCK BITS
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST.
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| PATENT SERVICES |
| 16740 HARDY STREET |
| HOUSTON, TEXAS 77205 |
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| ROBERT G. UPTON |
| PATENT SERVICES |
| SMITH INTERNATIONAL |
| 16740 HARDY STREET |
| HOUSTON, TX 77205 |
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