Patent Assignment Details
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| Reel/Frame: | 049258/0084 | |
| Pages: | 6 |
| | Recorded: | 05/22/2019 | | |
| Attorney Dkt #: | 224499-30003 |
| Conveyance: | ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). |
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Total properties:
1
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Patent #:
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Issue Dt:
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11/17/2020
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Application #:
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16305053
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Filing Dt:
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11/27/2018
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Publication #:
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Pub Dt:
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08/29/2019
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Title:
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Rubber cylinder with rigid seal rings on both ends, packer, and bridge plug
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Assignee
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| ROOM 2003, TOWER C, CHENGMING MANSION |
| NO. 2 XIZHIMENGNEI STREET, XICHENG DISTRICT |
| BEIJING, CHINA 100035 |
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Correspondence name and address
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LOEB & LOEB LLP
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321 NORTH CLARK STREET
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SUITE 2300
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CHICAGO, IL 60654
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