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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05/14/1991
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Application #:
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07394687
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Filing Dt:
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08/16/1989
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Inventor:
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JOHN H. DUERKSEN
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Title:
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SINGLE WELL INJECTION AND PRODUCTION SYSTEM
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST.
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SAN FRANCISCO, CALIFORNIA |
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CHEVRON CORP. |
LAW DEPT., PATENT DIVISION |
P. O. BOX 7141 |
SAN FRANCISCO, CA 94120-7141 |
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Assignment:
2
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CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). EFFECTIVE ON 01/10/1991
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CHEVRON CORP. |
LAW DEPT., PATENT DIVISION |
P. O. BOX 7141 |
SAN FRANCISCO, CA 94120-7141 |
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