CN208699640U - 一种快开人孔连锁保护装置 - Google Patents
一种快开人孔连锁保护装置 Download PDFInfo
- Publication number
- CN208699640U CN208699640U CN201821438981.8U CN201821438981U CN208699640U CN 208699640 U CN208699640 U CN 208699640U CN 201821438981 U CN201821438981 U CN 201821438981U CN 208699640 U CN208699640 U CN 208699640U
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- Prior art keywords
- block
- bar
- manhole cover
- shell ring
- welded
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
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Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201821438981.8U CN208699640U (zh) | 2018-09-03 | 2018-09-03 | 一种快开人孔连锁保护装置 |
Applications Claiming Priority (1)
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CN201821438981.8U CN208699640U (zh) | 2018-09-03 | 2018-09-03 | 一种快开人孔连锁保护装置 |
Publications (1)
Publication Number | Publication Date |
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CN208699640U true CN208699640U (zh) | 2019-04-05 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201821438981.8U Expired - Fee Related CN208699640U (zh) | 2018-09-03 | 2018-09-03 | 一种快开人孔连锁保护装置 |
Country Status (1)
Country | Link |
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CN (1) | CN208699640U (zh) |
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2018
- 2018-09-03 CN CN201821438981.8U patent/CN208699640U/zh not_active Expired - Fee Related
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right |
Effective date of registration: 20200723 Address after: 225000 shipbuilding (heavy industry) Industrial Park, Lidian Town, Guangling District, Yangzhou City, Jiangsu Province Patentee after: Jiangsu Qiuyuan Heavy Industry Co.,Ltd. Address before: 225000 Huai Si Industrial Park, Hanjiang District, Yangzhou, Jiangsu Patentee before: YANGZHOU QIUYUAN PRESSURE VESSEL MANUFACTURING Co.,Ltd. |
|
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20211229 Address after: 225000 No. 6, Yongxing Road, Lidian Town, Guangling District, Yangzhou City, Jiangsu Province Patentee after: YANGZHOU QIUYUAN PRESSURE VESSEL MANUFACTURING Co.,Ltd. Address before: 225000 shipbuilding (heavy industry) Industrial Park, Lidian Town, Guangling District, Yangzhou City, Jiangsu Province Patentee before: Jiangsu Qiuyuan Heavy Industry Co.,Ltd. |
|
TR01 | Transfer of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190405 |
|
CF01 | Termination of patent right due to non-payment of annual fee |