CN204002620U - 一种采油作业辅助工具 - Google Patents
一种采油作业辅助工具 Download PDFInfo
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- CN204002620U CN204002620U CN201420426050.1U CN201420426050U CN204002620U CN 204002620 U CN204002620 U CN 204002620U CN 201420426050 U CN201420426050 U CN 201420426050U CN 204002620 U CN204002620 U CN 204002620U
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CN201420426050.1U CN204002620U (zh) | 2014-07-31 | 2014-07-31 | 一种采油作业辅助工具 |
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CN201420426050.1U CN204002620U (zh) | 2014-07-31 | 2014-07-31 | 一种采油作业辅助工具 |
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CN204002620U true CN204002620U (zh) | 2014-12-10 |
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CN201420426050.1U Expired - Fee Related CN204002620U (zh) | 2014-07-31 | 2014-07-31 | 一种采油作业辅助工具 |
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Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
EE01 | Entry into force of recordation of patent licensing contract |
Assignee: YANCHENG XINYI SPECIAL MACHINE DEFUELING PUMP MANUFACTURE CO., LTD. Assignor: QUZHOU TAIXIANG CHEMICAL TECHNOLOGY CO., LTD. Contract record no.: 2015320000446 Denomination of utility model: Auxiliary tool for oil extraction work Granted publication date: 20141210 License type: Exclusive License Record date: 20150618 |
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LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20160731 |
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CF01 | Termination of patent right due to non-payment of annual fee |