CN203580447U - 教学用黑板画线器 - Google Patents
教学用黑板画线器 Download PDFInfo
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- CN203580447U CN203580447U CN201320735873.8U CN201320735873U CN203580447U CN 203580447 U CN203580447 U CN 203580447U CN 201320735873 U CN201320735873 U CN 201320735873U CN 203580447 U CN203580447 U CN 203580447U
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CN201320735873.8U CN203580447U (zh) | 2013-11-15 | 2013-11-15 | 教学用黑板画线器 |
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CN201320735873.8U CN203580447U (zh) | 2013-11-15 | 2013-11-15 | 教学用黑板画线器 |
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CN203580447U true CN203580447U (zh) | 2014-05-07 |
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CN201320735873.8U Expired - Fee Related CN203580447U (zh) | 2013-11-15 | 2013-11-15 | 教学用黑板画线器 |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: SUN XIAO Free format text: FORMER OWNER: LIU TIANHAI Effective date: 20150115 |
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C41 | Transfer of patent application or patent right or utility model | ||
C53 | Correction of patent for invention or patent application | ||
CB03 | Change of inventor or designer information |
Inventor after: Sun Xiao Inventor before: Liu Tianhai |
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COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LIU TIANHAI TO: SUN XIAO Free format text: CORRECT: ADDRESS; FROM: 271104 LAIWU, SHANDONG PROVINCE TO: 271100 LAIWU, SHANDONG PROVINCE |
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TR01 | Transfer of patent right |
Effective date of registration: 20150115 Address after: 271100 class 54, grade 3, grade 9, No.1 middle school, Laiwu, Shandong Patentee after: Sun Xiao Address before: 271104, grade eight, grade one, AI Shan Primary School, Gangcheng District, Laiwu, Shandong Patentee before: Liu Tianhai |
|
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140507 Termination date: 20141115 |
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EXPY | Termination of patent right or utility model |