CN201502517U - 零气锁气液混抽深井泵 - Google Patents
零气锁气液混抽深井泵 Download PDFInfo
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- CN201502517U CN201502517U CN2009202240451U CN200920224045U CN201502517U CN 201502517 U CN201502517 U CN 201502517U CN 2009202240451 U CN2009202240451 U CN 2009202240451U CN 200920224045 U CN200920224045 U CN 200920224045U CN 201502517 U CN201502517 U CN 201502517U
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Application Number | Priority Date | Filing Date | Title |
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CN2009202240451U CN201502517U (zh) | 2009-10-13 | 2009-10-13 | 零气锁气液混抽深井泵 |
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CN2009202240451U CN201502517U (zh) | 2009-10-13 | 2009-10-13 | 零气锁气液混抽深井泵 |
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CN201502517U true CN201502517U (zh) | 2010-06-09 |
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CN2009202240451U Expired - Fee Related CN201502517U (zh) | 2009-10-13 | 2009-10-13 | 零气锁气液混抽深井泵 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106401924A (zh) * | 2016-07-28 | 2017-02-15 | 濮阳市科锐机械工程技术有限公司 | 中空防气采油组合工具 |
CN112814619A (zh) * | 2019-11-15 | 2021-05-18 | 中国石油化工股份有限公司 | 分瓣减压阀及方法 |
-
2009
- 2009-10-13 CN CN2009202240451U patent/CN201502517U/zh not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106401924A (zh) * | 2016-07-28 | 2017-02-15 | 濮阳市科锐机械工程技术有限公司 | 中空防气采油组合工具 |
CN112814619A (zh) * | 2019-11-15 | 2021-05-18 | 中国石油化工股份有限公司 | 分瓣减压阀及方法 |
CN112814619B (zh) * | 2019-11-15 | 2024-05-24 | 中国石油化工股份有限公司 | 分瓣减压阀及方法 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: PUYANG ZHONGTAI DRILLING TECHNOLOGY DEVELOPMENT CO Free format text: FORMER OWNER: DU CANYU Effective date: 20121126 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20121126 Address after: Puyang City, Henan province 457001 the Yellow River Road Branch Chong floor 5 Thai company Patentee after: Puyang Zhngtai Petroleum Engineering Technology Development Co., Ltd. Address before: Puyang City, Henan province 457001 the Yellow River Road Branch Chong floor 5 Thai company Patentee before: Du Canyu |
|
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100609 Termination date: 20151013 |
|
EXPY | Termination of patent right or utility model |