CN214943818U - 一种防止废气溢出车间门的门斗 - Google Patents
一种防止废气溢出车间门的门斗 Download PDFInfo
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- CN214943818U CN214943818U CN202121497566.1U CN202121497566U CN214943818U CN 214943818 U CN214943818 U CN 214943818U CN 202121497566 U CN202121497566 U CN 202121497566U CN 214943818 U CN214943818 U CN 214943818U
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Legal Events
Date | Code | Title | Description |
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Door bucket for preventing exhaust gas from overflowing workshop door Effective date of registration: 20220331 Granted publication date: 20211130 Pledgee: Shandong Linyi Rural Commercial Bank Co.,Ltd. Pledgor: Dezhou quanrun Environmental Resources Co.,Ltd. Registration number: Y2022980003720 |
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PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230330 Granted publication date: 20211130 Pledgee: Shandong Linyi Rural Commercial Bank Co.,Ltd. Pledgor: Dezhou quanrun Environmental Resources Co.,Ltd. Registration number: Y2022980003720 |
|
PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A door hopper to prevent exhaust gas from overflowing the workshop door Effective date of registration: 20230331 Granted publication date: 20211130 Pledgee: Shandong Linyi Rural Commercial Bank Co.,Ltd. Pledgor: Dezhou quanrun Environmental Resources Co.,Ltd. Registration number: Y2023980037166 |