CN2811556Y - 井下螺旋交变强磁防蜡器 - Google Patents
井下螺旋交变强磁防蜡器 Download PDFInfo
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- CN2811556Y CN2811556Y CN 200520079257 CN200520079257U CN2811556Y CN 2811556 Y CN2811556 Y CN 2811556Y CN 200520079257 CN200520079257 CN 200520079257 CN 200520079257 U CN200520079257 U CN 200520079257U CN 2811556 Y CN2811556 Y CN 2811556Y
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN 200520079257 CN2811556Y (zh) | 2005-08-16 | 2005-08-16 | 井下螺旋交变强磁防蜡器 |
Applications Claiming Priority (1)
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CN 200520079257 CN2811556Y (zh) | 2005-08-16 | 2005-08-16 | 井下螺旋交变强磁防蜡器 |
Publications (1)
Publication Number | Publication Date |
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CN2811556Y true CN2811556Y (zh) | 2006-08-30 |
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CN 200520079257 Expired - Fee Related CN2811556Y (zh) | 2005-08-16 | 2005-08-16 | 井下螺旋交变强磁防蜡器 |
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CN (1) | CN2811556Y (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104863546A (zh) * | 2015-05-29 | 2015-08-26 | 山东鑫茂奥奈特复合固体润滑工程技术有限公司 | 一种永磁超声防蜡器 |
CN115492533A (zh) * | 2022-11-03 | 2022-12-20 | 东营市江润石油科技发展有限公司 | 一种用于磁防蜡管柱中的抽油杆 |
-
2005
- 2005-08-16 CN CN 200520079257 patent/CN2811556Y/zh not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104863546A (zh) * | 2015-05-29 | 2015-08-26 | 山东鑫茂奥奈特复合固体润滑工程技术有限公司 | 一种永磁超声防蜡器 |
CN115492533A (zh) * | 2022-11-03 | 2022-12-20 | 东营市江润石油科技发展有限公司 | 一种用于磁防蜡管柱中的抽油杆 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
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 |
Designer after: Cheng Shiying Designer after: Peng Bairen Designer after: Zhang Fuhuan Designer after: Zhou Xinlin Designer after: Yang Weizong Designer after: Yu Xiao Designer before: Cheng Shiying Designer before: Zhang Fuhuan Designer before: Zhou Xinlin Designer before: Xie Zhiming Designer before: Yu Xiao Designer before: Zhu Tianming |
|
COR | Change of bibliographic data |
Free format text: CORRECT: DESIGNER; FROM: CHENG SHIYING; ZHANG FUHUAN; ZHOU XINLIN; XIE ZHIMING; YU XIAO; ZHU TIANMING TO: CHENG SHIYING; PENG BOREN; ZHANG FUHUAN; ZHOU XINLIN; YANG WEIZONG; YU XIAO |
|
EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shannxi Xingchen Petroleum Technology Co., Ltd. Assignor: Cheng Shiying Contract fulfillment period: 2006.9.22 to 2011.9.22 Contract record no.: 2009610000153 Denomination of utility model: Downhole screw alternating ferromagnetic paraffin control device Granted publication date: 20060830 License type: Exclusive license Record date: 20091211 |
|
LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2006.9.22 TO 2011.9.22; CHANGE OF CONTRACT Name of requester: SHAANXI XINGCHEN PETROLEUM TECHNOLOGY CO., LTD. Effective date: 20091211 |
|
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060830 Termination date: 20110816 |