CN203670169U - 分层采油抽油泵 - Google Patents
分层采油抽油泵 Download PDFInfo
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- CN203670169U CN203670169U CN201420033466.7U CN201420033466U CN203670169U CN 203670169 U CN203670169 U CN 203670169U CN 201420033466 U CN201420033466 U CN 201420033466U CN 203670169 U CN203670169 U CN 203670169U
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Application Number | Priority Date | Filing Date | Title |
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CN201420033466.7U CN203670169U (zh) | 2014-01-21 | 2014-01-21 | 分层采油抽油泵 |
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CN201420033466.7U CN203670169U (zh) | 2014-01-21 | 2014-01-21 | 分层采油抽油泵 |
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CN203670169U true CN203670169U (zh) | 2014-06-25 |
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CN201420033466.7U Expired - Fee Related CN203670169U (zh) | 2014-01-21 | 2014-01-21 | 分层采油抽油泵 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111980640A (zh) * | 2019-05-24 | 2020-11-24 | 中国石油化工股份有限公司 | 一种三层油井有杆泵采油采水回注管柱及使用方法 |
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2014
- 2014-01-21 CN CN201420033466.7U patent/CN203670169U/zh not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111980640A (zh) * | 2019-05-24 | 2020-11-24 | 中国石油化工股份有限公司 | 一种三层油井有杆泵采油采水回注管柱及使用方法 |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C53 | Correction of patent for invention or patent application | ||
CB03 | Change of inventor or designer information |
Inventor after: Zhang Meiju Inventor after: Song Huilin Inventor after: Li Jiangtao Inventor after: Li Limin Inventor after: Wu Fenghua Inventor after: Wang Haixia Inventor after: Wang Juanjuan Inventor after: Wang Juanli Inventor after: Xiang Zhonghui Inventor before: Zhang Meiju Inventor before: Song Huimin Inventor before: Li Jiangtao Inventor before: Li Limin Inventor before: Wang Juanjuan Inventor before: Wang Juanli Inventor before: Xiang Zhonghui |
|
COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: ZHANG MEIJU SONG HUIMIN LI JIANGTAO LI LIMIN WANG JUANJUAN WANG JUANLI XIANG ZHONGHUI TO: ZHANG MEIJU SONG HUILIN LI JIANGTAO LI LIMIN WU FENGHUA WANG HAIXIA WANG JUANJUAN WANG JUANLI XIANG ZHONGHUI |
|
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 Termination date: 20150121 |
|
EXPY | Termination of patent right or utility model |