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: | 004759/0047 | |
| Pages: | 2 |
| | Recorded: | 07/13/1987 | | |
| Conveyance: | ASSIGNMENT OF ASSIGNORS INTEREST. EFFECTIVE DATE: MAY 22, 1986 |
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Total properties:
1
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Patent #:
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Issue Dt:
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02/23/1988
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Application #:
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07072315
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Filing Dt:
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07/13/1987
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Title:
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DIFFERENTIALLY HARDFACED ROCK BIT
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Correspondence name and address
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ROBERT A. FELSMAN
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CHIEF PATENT COUNSEL
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PATENTS & TECHNOLOGY MGMNT.
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HUGHES TOOL CO., P.O. BOX 2539
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HOUSTON, TX 77252-2539
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