CN208237319U - 一种可远程控制的输油管加热装置 - Google Patents
一种可远程控制的输油管加热装置 Download PDFInfo
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- CN208237319U CN208237319U CN201820768803.5U CN201820768803U CN208237319U CN 208237319 U CN208237319 U CN 208237319U CN 201820768803 U CN201820768803 U CN 201820768803U CN 208237319 U CN208237319 U CN 208237319U
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CN201820768803.5U CN208237319U (zh) | 2018-05-23 | 2018-05-23 | 一种可远程控制的输油管加热装置 |
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CN201820768803.5U CN208237319U (zh) | 2018-05-23 | 2018-05-23 | 一种可远程控制的输油管加热装置 |
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CN208237319U true CN208237319U (zh) | 2018-12-14 |
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CN201820768803.5U Expired - Fee Related CN208237319U (zh) | 2018-05-23 | 2018-05-23 | 一种可远程控制的输油管加热装置 |
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Legal Events
Date | Code | Title | Description |
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20190813 Address after: Room 402, Building 1, No. 1, Emerging Industries Incubator No. 32 Torch New Street, Daqing High-tech Zone, Heilongjiang Province, 163000 Patentee after: Daqing Dongyou R&D Co., Ltd. Address before: Room No. 3 301, Emerging Industry Incubator (Park) No. 36 Torch New Street, Daqing High-tech Zone, Heilongjiang Province Patentee before: Daqing East oil Technology Co., Ltd. |
|
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20200922 Address after: Room 319, block a, science and technology entrepreneurship Park, No. 12, Xinke Road, high tech Zone, Daqing City, Heilongjiang Province, 163000 Patentee after: Daqing Zhengrong oilfield technical service Co., Ltd Address before: Room 402, Building 1, No. 1, Emerging Industries Incubator No. 32 Torch New Street, Daqing High-tech Zone, Heilongjiang Province, 163000 Patentee before: DAQING DONGYOU YANCHUANG TECHNOLOGY R&D Co.,Ltd. |
|
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181214 Termination date: 20210523 |