CN203008874U - 一种用于砾石充填工具上的衬套 - Google Patents
一种用于砾石充填工具上的衬套 Download PDFInfo
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- CN203008874U CN203008874U CN 201220683130 CN201220683130U CN203008874U CN 203008874 U CN203008874 U CN 203008874U CN 201220683130 CN201220683130 CN 201220683130 CN 201220683130 U CN201220683130 U CN 201220683130U CN 203008874 U CN203008874 U CN 203008874U
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- lining
- sliding sleeve
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- lock dog
- positioning pipe
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CN 201220683130 CN203008874U (zh) | 2012-12-12 | 2012-12-12 | 一种用于砾石充填工具上的衬套 |
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CN 201220683130 CN203008874U (zh) | 2012-12-12 | 2012-12-12 | 一种用于砾石充填工具上的衬套 |
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CN203008874U true CN203008874U (zh) | 2013-06-19 |
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CN 201220683130 Withdrawn - After Issue CN203008874U (zh) | 2012-12-12 | 2012-12-12 | 一种用于砾石充填工具上的衬套 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102966337A (zh) * | 2012-12-12 | 2013-03-13 | 山东瑞丰石油技术有限责任公司 | 一种用于砾石充填工具上的衬套 |
CN104314518A (zh) * | 2014-10-28 | 2015-01-28 | 中国石油集团西部钻探工程有限公司 | 开关工具 |
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2012
- 2012-12-12 CN CN 201220683130 patent/CN203008874U/zh not_active Withdrawn - After Issue
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102966337A (zh) * | 2012-12-12 | 2013-03-13 | 山东瑞丰石油技术有限责任公司 | 一种用于砾石充填工具上的衬套 |
CN102966337B (zh) * | 2012-12-12 | 2015-12-16 | 山东瑞丰石油技术有限责任公司 | 一种用于砾石充填工具上的衬套 |
CN104314518A (zh) * | 2014-10-28 | 2015-01-28 | 中国石油集团西部钻探工程有限公司 | 开关工具 |
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Legal Events
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: Dongying Ruifeng Petroleum Development Co., Ltd. Assignor: Shandong Ruifeng Petroleum Technology Co., Ltd. Contract record no.: 2013370000114 Denomination of utility model: Lining used on gravel filling tools Granted publication date: 20130619 License type: Exclusive License Record date: 20130517 |
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LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
ASS | Succession or assignment of patent right |
Owner name: DONGYING RUIFENG PETROLEUM TECHNOLOGY DEVELOPMENT Effective date: 20140421 |
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C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20140421 Address after: 257091 Shandong city of Dongying Province Economic and Technological Development Zone in the state of Chu Road No. 5 Patentee after: Shandong Ruifeng Petroleum Technology Co., Ltd. Patentee after: Dongying Ruifeng Petroleum Development Co., Ltd. Patentee after: Qingdao Ruixin Petroleum Equipment Manufacturing Co., Ltd. Address before: 257091 Shandong Province, Dongying City West Bridge Road East Taishan five Patentee before: Shandong Ruifeng Petroleum Technology Co., Ltd. |
|
EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Dongying Ruifeng Petroleum Development Co., Ltd. Assignor: Shandong Ruifeng Petroleum Technology Co., Ltd. Contract record no.: 2013370000114 Date of cancellation: 20140507 |
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LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
AV01 | Patent right actively abandoned |
Granted publication date: 20130619 Effective date of abandoning: 20151216 |
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C25 | Abandonment of patent right or utility model to avoid double patenting |