CN213654781U - 一种连接方便的石油套管 - Google Patents
一种连接方便的石油套管 Download PDFInfo
- Publication number
- CN213654781U CN213654781U CN202022702988.XU CN202022702988U CN213654781U CN 213654781 U CN213654781 U CN 213654781U CN 202022702988 U CN202022702988 U CN 202022702988U CN 213654781 U CN213654781 U CN 213654781U
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- annular connecting
- connecting pipe
- oil
- pipe
- casing
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CN202022702988.XU CN213654781U (zh) | 2020-11-20 | 2020-11-20 | 一种连接方便的石油套管 |
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CN202022702988.XU CN213654781U (zh) | 2020-11-20 | 2020-11-20 | 一种连接方便的石油套管 |
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CN213654781U true CN213654781U (zh) | 2021-07-09 |
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CN202022702988.XU Expired - Fee Related CN213654781U (zh) | 2020-11-20 | 2020-11-20 | 一种连接方便的石油套管 |
Country Status (1)
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CN (1) | CN213654781U (zh) |
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2020
- 2020-11-20 CN CN202022702988.XU patent/CN213654781U/zh not_active Expired - Fee Related
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Legal Events
Date | Code | Title | Description |
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right |
Effective date of registration: 20211101 Address after: 300000 room 404, building C05, venture headquarters base on the north side of Fuyuan Road, Wuqing District, Tianjin Patentee after: Komina (Tianjin) communication technology Co.,Ltd. Address before: Room 414-18, building C05, venture headquarters base, North Fuyuan Road, development zone, Wuqing District, Tianjin (centralized office area) Patentee before: Tianjin sterstone Petroleum Technology Co.,Ltd. |
|
TR01 | Transfer of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210709 Termination date: 20211120 |
|
CF01 | Termination of patent right due to non-payment of annual fee |