Patent Assignment Abstract of Title
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Total Assignments:
1
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Patent #:
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NONE
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Issue Dt:
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Application #:
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17922548
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Filing Dt:
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10/31/2022
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Publication #:
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Pub Dt:
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07/06/2023
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Inventors:
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Zhonghua Zhang, Jiaming Liu, Xiaoming Dong, Weiguo Yang
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Title:
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Anti-Collapse Oil Casing with High Strength and Manufacturing Method Therefor
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
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| 885 FUJIN ROAD |
| BAOSHAN DISTRICT |
| SHANGHAI, CHINA 201900 |
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| BURNS & LEVINSON LLP |
| 125 HIGH STREET |
| BOSTON, MA 02110 |
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