CN202360043U - 金刚石薄壁钻头与盖板连接结构 - Google Patents
金刚石薄壁钻头与盖板连接结构 Download PDFInfo
- Publication number
- CN202360043U CN202360043U CN2011204237376U CN201120423737U CN202360043U CN 202360043 U CN202360043 U CN 202360043U CN 2011204237376 U CN2011204237376 U CN 2011204237376U CN 201120423737 U CN201120423737 U CN 201120423737U CN 202360043 U CN202360043 U CN 202360043U
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- steel pipe
- thread
- cover plate
- drill bit
- sleeve
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Application Number | Priority Date | Filing Date | Title |
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CN2011204237376U CN202360043U (zh) | 2011-10-31 | 2011-10-31 | 金刚石薄壁钻头与盖板连接结构 |
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CN2011204237376U CN202360043U (zh) | 2011-10-31 | 2011-10-31 | 金刚石薄壁钻头与盖板连接结构 |
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CN202360043U true CN202360043U (zh) | 2012-08-01 |
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CN2011204237376U Expired - Fee Related CN202360043U (zh) | 2011-10-31 | 2011-10-31 | 金刚石薄壁钻头与盖板连接结构 |
Country Status (1)
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CN (1) | CN202360043U (zh) |
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2011
- 2011-10-31 CN CN2011204237376U patent/CN202360043U/zh not_active Expired - Fee Related
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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: Guilin Tebon Superhard Material Co., Ltd. Assignor: China Nonferrous Metal Guilin Research Institute of Geology for Mineral Resources Co., Ltd. Contract record no.: 2012450000067 Denomination of utility model: Connecting structure of thin kerf diamond bit and cover plate Granted publication date: 20120801 License type: Exclusive License Record date: 20120807 |
|
EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Guilin Tebon Superhard Material Co., Ltd. Assignor: China Nonferrous Metal Guilin Research Institute of Geology for Mineral Resources Co., Ltd. Contract record no.: 2012450000067 Denomination of utility model: Connecting structure of thin kerf diamond bit and cover plate Granted publication date: 20120801 License type: Exclusive License Record date: 20120807 |
|
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: 20120801 Termination date: 20171031 |
|
CF01 | Termination of patent right due to non-payment of annual fee |