CN206707671U - 膨胀式可降解桥塞 - Google Patents
膨胀式可降解桥塞 Download PDFInfo
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- CN206707671U CN206707671U CN201621399214.1U CN201621399214U CN206707671U CN 206707671 U CN206707671 U CN 206707671U CN 201621399214 U CN201621399214 U CN 201621399214U CN 206707671 U CN206707671 U CN 206707671U
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Application Number | Priority Date | Filing Date | Title |
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CN201621399214.1U CN206707671U (zh) | 2016-12-19 | 2016-12-19 | 膨胀式可降解桥塞 |
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CN201621399214.1U CN206707671U (zh) | 2016-12-19 | 2016-12-19 | 膨胀式可降解桥塞 |
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CN206707671U true CN206707671U (zh) | 2017-12-05 |
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CN201621399214.1U Withdrawn - After Issue CN206707671U (zh) | 2016-12-19 | 2016-12-19 | 膨胀式可降解桥塞 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106703746A (zh) * | 2016-12-19 | 2017-05-24 | 中国石油集团渤海钻探工程有限公司 | 膨胀式可降解桥塞 |
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2016
- 2016-12-19 CN CN201621399214.1U patent/CN206707671U/zh not_active Withdrawn - After Issue
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106703746A (zh) * | 2016-12-19 | 2017-05-24 | 中国石油集团渤海钻探工程有限公司 | 膨胀式可降解桥塞 |
CN106703746B (zh) * | 2016-12-19 | 2022-06-10 | 中国石油天然气集团有限公司 | 膨胀式可降解桥塞 |
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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 |
Effective date of registration: 20211029 Address after: 100007 No. 9 North Main Street, Dongcheng District, Beijing, Dongzhimen Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Bohai Drilling Engineering Co.,Ltd. Address before: 300457 Tianjin Binhai New Area Development Zone Second Avenue 83, China Petroleum Tianjin building Bohai Drilling Engineering Co., Ltd. Patentee before: CNPC Bohai Drilling Engineering Co.,Ltd. |
|
TR01 | Transfer of patent right | ||
AV01 | Patent right actively abandoned |
Granted publication date: 20171205 Effective date of abandoning: 20220610 |
|
AV01 | Patent right actively abandoned |
Granted publication date: 20171205 Effective date of abandoning: 20220610 |
|
AV01 | Patent right actively abandoned | ||
AV01 | Patent right actively abandoned |