CN204782846U - 井下液力助推器 - Google Patents
井下液力助推器 Download PDFInfo
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- CN204782846U CN204782846U CN201520538928.5U CN201520538928U CN204782846U CN 204782846 U CN204782846 U CN 204782846U CN 201520538928 U CN201520538928 U CN 201520538928U CN 204782846 U CN204782846 U CN 204782846U
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Application Number | Priority Date | Filing Date | Title |
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CN201520538928.5U CN204782846U (zh) | 2015-07-23 | 2015-07-23 | 井下液力助推器 |
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CN201520538928.5U CN204782846U (zh) | 2015-07-23 | 2015-07-23 | 井下液力助推器 |
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CN204782846U true CN204782846U (zh) | 2015-11-18 |
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CN201520538928.5U Expired - Fee Related CN204782846U (zh) | 2015-07-23 | 2015-07-23 | 井下液力助推器 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105909199A (zh) * | 2016-06-16 | 2016-08-31 | 中国石油集团渤海钻探工程有限公司 | 井下液力推进装置 |
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2015
- 2015-07-23 CN CN201520538928.5U patent/CN204782846U/zh not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105909199A (zh) * | 2016-06-16 | 2016-08-31 | 中国石油集团渤海钻探工程有限公司 | 井下液力推进装置 |
CN105909199B (zh) * | 2016-06-16 | 2019-03-19 | 中国石油集团渤海钻探工程有限公司 | 井下液力推进装置 |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20210714 Address after: 100007 No. 9 North Main Street, Dongcheng District, Beijing, Dongzhimen Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Bohai Drilling Engineering Co.,Ltd. Address before: 300457 Tianjin Binhai New Area Development Zone Huanghai Road 106 Bohai Drilling Engineering Co., Ltd. science and Technology Development Office Patentee before: CNPC Bohai Drilling Engineering Co.,Ltd. |
|
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 |