CN2693989Y - 具有防气、防砂、抽稠油作用的浸入式抽油泵 - Google Patents
具有防气、防砂、抽稠油作用的浸入式抽油泵 Download PDFInfo
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- CN2693989Y CN2693989Y CN 200320129579 CN200320129579U CN2693989Y CN 2693989 Y CN2693989 Y CN 2693989Y CN 200320129579 CN200320129579 CN 200320129579 CN 200320129579 U CN200320129579 U CN 200320129579U CN 2693989 Y CN2693989 Y CN 2693989Y
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CN 200320129579 CN2693989Y (zh) | 2003-12-24 | 2003-12-24 | 具有防气、防砂、抽稠油作用的浸入式抽油泵 |
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CN 200320129579 CN2693989Y (zh) | 2003-12-24 | 2003-12-24 | 具有防气、防砂、抽稠油作用的浸入式抽油泵 |
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CN2693989Y true CN2693989Y (zh) | 2005-04-20 |
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CN 200320129579 Expired - Fee Related CN2693989Y (zh) | 2003-12-24 | 2003-12-24 | 具有防气、防砂、抽稠油作用的浸入式抽油泵 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102619744A (zh) * | 2012-03-23 | 2012-08-01 | 李广青 | 无固定凡尔的长柱塞防砂防气防垢的管式抽油泵 |
CN105089995A (zh) * | 2014-05-08 | 2015-11-25 | 王颖 | 有机六防无杆液力驱动双作用往复泵 |
-
2003
- 2003-12-24 CN CN 200320129579 patent/CN2693989Y/zh not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102619744A (zh) * | 2012-03-23 | 2012-08-01 | 李广青 | 无固定凡尔的长柱塞防砂防气防垢的管式抽油泵 |
CN105089995A (zh) * | 2014-05-08 | 2015-11-25 | 王颖 | 有机六防无杆液力驱动双作用往复泵 |
CN105089995B (zh) * | 2014-05-08 | 2017-07-14 | 王颖 | 有机六防无杆液力驱动双作用往复泵 |
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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: CNPC BOHAI PETROLEUM EQUIPMENT MANUFACTURING CO., Free format text: FORMER OWNER: DAGANG OIL FIELD GROUP CO., LTD. Effective date: 20100906 Free format text: FORMER OWNER: XINSHIJI MACHINERY MANUFACTURING CO., LTD., DAGANG OIL FIELD GROUP |
|
C41 | Transfer of patent application or patent right or utility model | ||
COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 300280 YUZHUAN, MINISTRY OF SCIENCE AND TECHNOLOGY DEVELOPMENT, DAGANG OILFIELD GROUP CO., LTD., YARD 3, DAGANG DISTRICT, TIANJIN CITY TO: 300280 CHUANGANG ROAD, DAGANG OILFIELD, DAGANG DISTRICT, TIANJIN CITY |
|
TR01 | Transfer of patent right |
Effective date of registration: 20100906 Address after: 300280 Tianjin City, Grand Port Dagang Oilfield Sichuan Road Patentee after: CNPC Bohai Equipment Manufacturing Co., Ltd. Address before: 300280 Grand Port science and technology development department, Dagang Oilfield, No. three, Tianjin, Co-patentee before: Xinshiji Machinery Building Co., Ltd., Dagang Oil Field Group Patentee before: Dagang Oil Field Group Co., Ltd. |
|
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050420 Termination date: 20121224 |