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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04/23/1991
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Application #:
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07277559
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Filing Dt:
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11/29/1988
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Inventor:
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KENNETH D. MAHRER
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Title:
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METHOD FOR DETERMINING THE DEPTH OF A HYDRAULIC FRACTURE ZONE IN THE EARTH
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST.
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| 8600 WEST BRYN MAWR AVENUE |
| CHICAGO, ILLINOIS 60631 |
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| DOWELL & DOWELL |
| 2001 JEFFERSON DAVIS HIGHWAY, STE. 705 |
| ARLINGTON, VA 22202 |
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