CN203214865U - 一种应用油田井下高端密封环 - Google Patents
一种应用油田井下高端密封环 Download PDFInfo
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- CN203214865U CN203214865U CN 201320245745 CN201320245745U CN203214865U CN 203214865 U CN203214865 U CN 203214865U CN 201320245745 CN201320245745 CN 201320245745 CN 201320245745 U CN201320245745 U CN 201320245745U CN 203214865 U CN203214865 U CN 203214865U
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CN 201320245745 CN203214865U (zh) | 2013-05-09 | 2013-05-09 | 一种应用油田井下高端密封环 |
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C14 | Grant of patent or utility model | ||
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C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20150922 Address after: 163453 Heilongjiang Province, Daqing City Ranghulu District West Lake Street Minghu Garden District No. 9 room 207 Patentee after: Sheng Chengwei Address before: 163000 Heilongjiang Province, Daqing City Ranghulu District No. 80 Jianghan Road Patentee before: DAQING SHENGRI PETROLEUM TECHNOLOGY DEVELOPMENT CO., LTD. |
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C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20151113 Address after: 163453 Heilongjiang Province, Daqing City Ranghulu District West Lake Street Minghu Garden District No. 9 room 207 Patentee after: DAQING SHENGRI PETROLEUM TECHNOLOGY DEVELOPMENT CO., LTD. Address before: 163453 Heilongjiang Province, Daqing City Ranghulu District West Lake Street Minghu Garden District No. 9 room 207 Patentee before: Sheng Chengwei |
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CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130925 Termination date: 20170509 |
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CF01 | Termination of patent right due to non-payment of annual fee |