CN206274000U - 一种石油钻机井架用液压支架系统 - Google Patents
一种石油钻机井架用液压支架系统 Download PDFInfo
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- CN206274000U CN206274000U CN201620945023.4U CN201620945023U CN206274000U CN 206274000 U CN206274000 U CN 206274000U CN 201620945023 U CN201620945023 U CN 201620945023U CN 206274000 U CN206274000 U CN 206274000U
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CN201620945023.4U CN206274000U (zh) | 2016-08-26 | 2016-08-26 | 一种石油钻机井架用液压支架系统 |
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CN201620945023.4U CN206274000U (zh) | 2016-08-26 | 2016-08-26 | 一种石油钻机井架用液压支架系统 |
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CN206274000U true CN206274000U (zh) | 2017-06-23 |
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CN201620945023.4U Expired - Fee Related CN206274000U (zh) | 2016-08-26 | 2016-08-26 | 一种石油钻机井架用液压支架系统 |
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CN (1) | CN206274000U (zh) |
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2016
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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: 20180725 Address after: 100028 Chaoyang District, Beijing Hui Xin Street six, Twelfth level. Co-patentee after: Drilling well three companies of Central Plains petroleum works Co., Ltd of China Petrochemical Industry Patentee after: SINOPEC OILFIELD SERVICE CORPORATION Co-patentee after: SINOPEC ZHONGYUAN PETROLEUM ENGINEERING CO., LTD. Address before: 100029 Chaoyang District, Beijing Hui Xin Street six, Twelfth level. Co-patentee before: Drilling well three companies of Central Plains petroleum works Co., Ltd of China Petrochemical Industry Patentee before: SINOPEC OILFIELD SERVICE CORPORATION |
|
TR01 | Transfer of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170623 Termination date: 20200826 |
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CF01 | Termination of patent right due to non-payment of annual fee |