CN203702096U - 一种新型无梁式液压抽油机 - Google Patents
一种新型无梁式液压抽油机 Download PDFInfo
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- CN203702096U CN203702096U CN201320685822.9U CN201320685822U CN203702096U CN 203702096 U CN203702096 U CN 203702096U CN 201320685822 U CN201320685822 U CN 201320685822U CN 203702096 U CN203702096 U CN 203702096U
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- oil
- oil cylinder
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- valve
- hydraulic
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CN201320685822.9U CN203702096U (zh) | 2013-11-04 | 2013-11-04 | 一种新型无梁式液压抽油机 |
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CN201320685822.9U CN203702096U (zh) | 2013-11-04 | 2013-11-04 | 一种新型无梁式液压抽油机 |
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CN203702096U true CN203702096U (zh) | 2014-07-09 |
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CN201320685822.9U Expired - Fee Related CN203702096U (zh) | 2013-11-04 | 2013-11-04 | 一种新型无梁式液压抽油机 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104790919A (zh) * | 2015-05-12 | 2015-07-22 | 天津市仕杰达能源技术开发有限公司 | 一种长冲程自动换向液压抽油机 |
CN105134137A (zh) * | 2015-08-28 | 2015-12-09 | 中国石油天然气股份有限公司 | 液压抽油装置 |
CN108843275A (zh) * | 2018-06-12 | 2018-11-20 | 刘长年 | 第四代高效长冲程长寿命智能式机电液抽油机 |
-
2013
- 2013-11-04 CN CN201320685822.9U patent/CN203702096U/zh not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104790919A (zh) * | 2015-05-12 | 2015-07-22 | 天津市仕杰达能源技术开发有限公司 | 一种长冲程自动换向液压抽油机 |
CN105134137A (zh) * | 2015-08-28 | 2015-12-09 | 中国石油天然气股份有限公司 | 液压抽油装置 |
CN105134137B (zh) * | 2015-08-28 | 2018-01-02 | 中国石油天然气股份有限公司 | 液压抽油装置 |
CN108843275A (zh) * | 2018-06-12 | 2018-11-20 | 刘长年 | 第四代高效长冲程长寿命智能式机电液抽油机 |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: YUNNAN NANXING TECHNOLOGY DEVELOPMENT CO., LTD. Free format text: FORMER OWNER: LIU CHANGNIAN Effective date: 20150727 |
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C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20150727 Address after: 650033, Yunnan science and Technology Park, Kunming University of Science and Technology, Kunming, 296 Patentee after: Yunnan Nanxing Technology Development Co., Ltd. Address before: 102218 Changping District Tiantongyuan three East District of Beijing city 10-4-102 Patentee before: Liu Changnian |
|
EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shaanxi Hualing New Material Technology Co., Ltd Assignor: YUNNAN SOUTHERN STAR TECHNOLOGY DEVELOPMENT Co.,Ltd. Contract record no.: X2020530000002 Denomination of utility model: Novel beam-free type hydraulic pumping unit Granted publication date: 20140709 License type: Exclusive License Record date: 20200509 |
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EE01 | Entry into force of recordation of patent licensing contract | ||
TR01 | Transfer of patent right |
Effective date of registration: 20201012 Address after: 102218, Beijing, Changping District Tiantongyuan East three District 10-4-102 Patentee after: Liu Changnian Address before: 650033, Yunnan science and Technology Park, Kunming University of Science and Technology, Kunming, 296 Patentee before: YUNNAN SOUTHERN STAR TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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TR01 | Transfer of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20201104 |
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CF01 | Termination of patent right due to non-payment of annual fee |