CN202417449U - 一种拉套退套机构 - Google Patents
一种拉套退套机构 Download PDFInfo
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- CN202417449U CN202417449U CN2011205652747U CN201120565274U CN202417449U CN 202417449 U CN202417449 U CN 202417449U CN 2011205652747 U CN2011205652747 U CN 2011205652747U CN 201120565274 U CN201120565274 U CN 201120565274U CN 202417449 U CN202417449 U CN 202417449U
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Application Number | Priority Date | Filing Date | Title |
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CN2011205652747U CN202417449U (zh) | 2011-12-29 | 2011-12-29 | 一种拉套退套机构 |
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CN2011205652747U CN202417449U (zh) | 2011-12-29 | 2011-12-29 | 一种拉套退套机构 |
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CN202417449U true CN202417449U (zh) | 2012-09-05 |
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CN2011205652747U Expired - Lifetime CN202417449U (zh) | 2011-12-29 | 2011-12-29 | 一种拉套退套机构 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103184855B (zh) * | 2011-12-29 | 2016-12-14 | 安东石油技术(集团)有限公司 | 一种拉套退套机构及拉套退套方法 |
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2011
- 2011-12-29 CN CN2011205652747U patent/CN202417449U/zh not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103184855B (zh) * | 2011-12-29 | 2016-12-14 | 安东石油技术(集团)有限公司 | 一种拉套退套机构及拉套退套方法 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Haineng Haite Petroleum Science and Technology Development Co., Ltd., Beijing Assignor: Anton Oilfield Services (Group) Ltd. Contract record no.: 2013990000890 Denomination of utility model: Sleeve pulling and withdrawing mechanism and method Granted publication date: 20120905 License type: Exclusive License Record date: 20131230 |
|
LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Haineng Haite Petroleum Science and Technology Development Co., Ltd., Beijing Assignor: Anton Oilfield Services (Group) Ltd. Contract record no.: 2013990000890 Denomination of utility model: Sleeve pulling and withdrawing mechanism and method Granted publication date: 20120905 License type: Exclusive License Record date: 20131230 |
|
LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20170414 Address after: 102200 Beijing science and Technology Park of Changping District Bai Fu Road 10 Beikong building room 707A Patentee after: Haineng Haite Petroleum Science and Technology Development Co., Ltd., Beijing Address before: 100102 Beijing, East Lake, No. West Road screen screen Road, No. 8 Patentee before: Anton Oilfield Services (Group) Ltd. |
|
TR01 | Transfer of patent right | ||
CX01 | Expiry of patent term |
Granted publication date: 20120905 |
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CX01 | Expiry of patent term |