CN206983427U - 一种石墨烯空气滤片 - Google Patents
一种石墨烯空气滤片 Download PDFInfo
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- CN206983427U CN206983427U CN201720461773.9U CN201720461773U CN206983427U CN 206983427 U CN206983427 U CN 206983427U CN 201720461773 U CN201720461773 U CN 201720461773U CN 206983427 U CN206983427 U CN 206983427U
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CN201720461773.9U CN206983427U (zh) | 2017-04-27 | 2017-04-27 | 一种石墨烯空气滤片 |
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CN201720461773.9U CN206983427U (zh) | 2017-04-27 | 2017-04-27 | 一种石墨烯空气滤片 |
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CN206983427U true CN206983427U (zh) | 2018-02-09 |
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CN201720461773.9U Expired - Fee Related CN206983427U (zh) | 2017-04-27 | 2017-04-27 | 一种石墨烯空气滤片 |
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Legal Events
Date | Code | Title | Description |
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
CB03 | Change of inventor or designer information |
Inventor after: Yang Fengyu Inventor before: Deng Lingfeng Inventor before: Wu Yiqiang |
|
CB03 | Change of inventor or designer information | ||
TR01 | Transfer of patent right |
Effective date of registration: 20180202 Address after: 419399 Huaihua City, Hunan province Xupu County Lu Feng Zhen victory Street nine Patentee after: Yang Fengyu Address before: 410000 Shaoshan South Road, Hunan, No. 498, No. Patentee before: Central South University of Forestry and Technology |
|
TR01 | Transfer of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180209 Termination date: 20180427 |
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CF01 | Termination of patent right due to non-payment of annual fee |