CN201925613U - 一种水下整体密封式保温配重管道 - Google Patents
一种水下整体密封式保温配重管道 Download PDFInfo
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- CN201925613U CN201925613U CN2010206774215U CN201020677421U CN201925613U CN 201925613 U CN201925613 U CN 201925613U CN 2010206774215 U CN2010206774215 U CN 2010206774215U CN 201020677421 U CN201020677421 U CN 201020677421U CN 201925613 U CN201925613 U CN 201925613U
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CN2010206774215U CN201925613U (zh) | 2010-12-23 | 2010-12-23 | 一种水下整体密封式保温配重管道 |
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CN2010206774215U CN201925613U (zh) | 2010-12-23 | 2010-12-23 | 一种水下整体密封式保温配重管道 |
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CN201925613U true CN201925613U (zh) | 2011-08-10 |
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CN2010206774215U Expired - Fee Related CN201925613U (zh) | 2010-12-23 | 2010-12-23 | 一种水下整体密封式保温配重管道 |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CP01 | Change in the name or title of a patent holder | ||
CP01 | Change in the name or title of a patent holder |
Address after: 100016 4705 mailbox, CNOOC building, 25 Chaoyangmen North Street, Dongcheng District, Beijing. Co-patentee after: CNOOC Energy Development Co., Ltd. Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100016 4705 mailbox, CNOOC building, 25 Chaoyangmen North Street, Dongcheng District, Beijing. Co-patentee before: CNOOC Energy Development Co., Ltd. Patentee before: China National Offshore Oil Corporation |
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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: 20110810 Termination date: 20171223 |