Patent Assignment Abstract of Title
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Total Assignments:
2
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Patent #:
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Issue Dt:
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07/03/1990
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Application #:
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07355084
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Filing Dt:
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05/18/1989
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Inventor:
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STEPHEN V. CHELMINSKI
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Title:
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METHOD, SYSTEM AND APPARATUS PRODUCING POWERFUL SEISMIC ENERGY IMPULSES BY IMPLOSION USEABLE IN WELLS IN THE EARTH
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST.
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| FOUR DUKE PLACE |
| NORWALK, CONNECTICUT 06854 |
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| PARMELEE, BOLLINGER & BRAMBLETT |
| 460 SUMMER STREET |
| STAMFORD, CT 06901 |
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Assignment:
2
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PATENT, TRADEMARK AND LICENSE MORTGAGE
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| 120 S. LASALLE STREET |
| CHICAGO, ILLINOIS 60603 |
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| MEREDITH A. PARSONS |
| GOLDBERG, KOHN, BELL, BLACK, ET AL |
| 55 EAST MONROE STREET |
| SUITE 3900 |
| CHICAGO, IL 60603 |
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