CN202090858U - 带有加厚段的耐磨钻铤 - Google Patents
带有加厚段的耐磨钻铤 Download PDFInfo
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- CN202090858U CN202090858U CN2011202037197U CN201120203719U CN202090858U CN 202090858 U CN202090858 U CN 202090858U CN 2011202037197 U CN2011202037197 U CN 2011202037197U CN 201120203719 U CN201120203719 U CN 201120203719U CN 202090858 U CN202090858 U CN 202090858U
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- drill collar
- thickened section
- female joint
- thick section
- wearable
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Application Number | Priority Date | Filing Date | Title |
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CN2011202037197U CN202090858U (zh) | 2011-06-15 | 2011-06-15 | 带有加厚段的耐磨钻铤 |
Applications Claiming Priority (1)
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CN2011202037197U CN202090858U (zh) | 2011-06-15 | 2011-06-15 | 带有加厚段的耐磨钻铤 |
Publications (1)
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CN202090858U true CN202090858U (zh) | 2011-12-28 |
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CN2011202037197U Expired - Fee Related CN202090858U (zh) | 2011-06-15 | 2011-06-15 | 带有加厚段的耐磨钻铤 |
Country Status (1)
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CN (1) | CN202090858U (zh) |
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2011
- 2011-06-15 CN CN2011202037197U patent/CN202090858U/zh not_active Expired - Fee Related
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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: SHANDONG DONGWANG PETROLEUM EQUIPMENT CO., LTD. Free format text: FORMER OWNER: LI XI Effective date: 20120320 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20120320 Address after: Yuan Qiao xiang Guanzhuang Cun Dezhou Economic Development Zone, Shandong province 253000 Patentee after: Shandong Dongwang Petroleum Equipment Co., Ltd. Address before: 253000 No. 402 Jiefang North Road, Decheng District, Shandong, Dezhou Patentee before: Li Xi |
|
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111228 Termination date: 20160615 |
|
CF01 | Termination of patent right due to non-payment of annual fee |