CN203603169U - 一种防止反向开启的双层安全防护井盖 - Google Patents
一种防止反向开启的双层安全防护井盖 Download PDFInfo
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- CN203603169U CN203603169U CN201320772100.7U CN201320772100U CN203603169U CN 203603169 U CN203603169 U CN 203603169U CN 201320772100 U CN201320772100 U CN 201320772100U CN 203603169 U CN203603169 U CN 203603169U
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- 239000007788 liquid Substances 0.000 abstract description 5
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320772100.7U CN203603169U (zh) | 2013-12-02 | 2013-12-02 | 一种防止反向开启的双层安全防护井盖 |
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| CN201320772100.7U CN203603169U (zh) | 2013-12-02 | 2013-12-02 | 一种防止反向开启的双层安全防护井盖 |
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| CN203603169U true CN203603169U (zh) | 2014-05-21 |
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| CN201320772100.7U Expired - Fee Related CN203603169U (zh) | 2013-12-02 | 2013-12-02 | 一种防止反向开启的双层安全防护井盖 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109629604A (zh) * | 2018-12-22 | 2019-04-16 | 黑龙江建筑职业技术学院 | 一种自锁式市政防盗井盖 |
| CN112227422A (zh) * | 2020-09-02 | 2021-01-15 | 广东飞企互联科技股份有限公司 | 一种双层智能井盖 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109629604A (zh) * | 2018-12-22 | 2019-04-16 | 黑龙江建筑职业技术学院 | 一种自锁式市政防盗井盖 |
| CN109629604B (zh) * | 2018-12-22 | 2020-07-17 | 黑龙江建筑职业技术学院 | 一种自锁式市政防盗井盖 |
| CN112227422A (zh) * | 2020-09-02 | 2021-01-15 | 广东飞企互联科技股份有限公司 | 一种双层智能井盖 |
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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: HEILONGJIANG ZHENGHAO NEW MATERIAL TECHNOLOGY CO., Free format text: FORMER OWNER: LI JUN Effective date: 20150423 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 150090 HARBIN, HEILONGJIANG PROVINCE TO: 161200 QIQIHAR, HEILONGJIANG PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20150423 Address after: 161200, No. 88, one street, Fuyu Town, Fuyu County, Heilongjiang, Qigihar Patentee after: Zheng He new material Science and Technology Ltd. of Heilongjiang Province Address before: 150090, room 10, building 90, No. 706, Xiangjiang Road, Nangang District, Heilongjiang, Harbin Patentee before: Li Jun |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20180201 Address after: 150000 Xiang an street, Xiangfang District, Harbin, Heilongjiang Province, No. 72 Patentee after: Wang Zhiqiang Address before: 161200, No. 88, one street, Fuyu Town, Fuyu County, Heilongjiang, Qigihar Patentee before: Zheng He new material Science and Technology Ltd. of Heilongjiang Province |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140521 Termination date: 20181202 |
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| CF01 | Termination of patent right due to non-payment of annual fee |