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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07/16/1991
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Application #:
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07556891
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Filing Dt:
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07/23/1990
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Inventor:
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JOHN M. ZWIEGEL
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Title:
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CASING HANGER AND SEAL
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST.
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| A CORP. OF OH |
| HOUSTON, TEXAS |
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| WILLIAM E. SHULL |
| BUTLER & BINION |
| 1500 FIRST INTERSTATE BANK PLAZA |
| HOUSTON, TX 77002-5008 |
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Assignment:
2
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ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
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| SUITE 1200 |
| 515 POST OAK BOULEVARD |
| HOUSTON, TEXAS 77027 |
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| COOPER INDUSTRIES, INC. |
| RHONDA J. SMITH |
| 1001 FANNIN, SUITE 4000 |
| HOUSTON, TEXAS 77002 |
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