Patent Assignment Details
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| Reel/Frame: | 005505/0272 | |
| Pages: | 3 |
| | Recorded: | 11/13/1990 | | |
| Conveyance: | ASSIGNMENT OF ASSIGNORS INTEREST. |
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Total properties:
1
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Patent #:
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Issue Dt:
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08/13/1991
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Application #:
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07523702
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Filing Dt:
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04/12/1990
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Title:
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DRILLING TOOL WITH RETRACTABLE PILOT DRILLING UNIT
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Assignee
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| 3900 ESSEX LANE, SUITE 1200 |
| A CORP. OF DELAWARE |
| HOUSTON, TEXAS 77027 |
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Correspondence name and address
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PRINCE, YEATES & GELDZAHLER
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JOSEPH A. WALKOWSKI
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CITY CENTRE I., STE. 900
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175 EAST FOURTH SOUTH
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SALT LAKE CITY, UT 84111
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