CN203287257U - Test detection tool for rubber barrel of compression packer - Google Patents
Test detection tool for rubber barrel of compression packer Download PDFInfo
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- CN203287257U CN203287257U CN2013202403188U CN201320240318U CN203287257U CN 203287257 U CN203287257 U CN 203287257U CN 2013202403188 U CN2013202403188 U CN 2013202403188U CN 201320240318 U CN201320240318 U CN 201320240318U CN 203287257 U CN203287257 U CN 203287257U
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Abstract
The utility model discloses a test detection tool for a rubber barrel of a compression packer, which comprises a central tube (1), an unsealed tube (24) and a barrel-shaped hydraulic cylinder outer sleeve (10), wherein the right end of the hydraulic cylinder outer sleeve (10) is connected with the unsealed tube (24) through a barrel-shaped connecting ring (16) in a sealing manner, a closed ring-shaped cavity (26) is formed between the hydraulic cylinder outer sleeve (10) and the central tube (1), a barrel-shaped piston (13) and a measurement ring (11) which is arranged outside the unsealed tube (24) in a sleeving manner are arranged in the ring-shaped cavity (26), the piston (13) can push a baffle ring (5), a piston rod (7) and the measurement ring (11) to slide along the axial line of the central tube (1), and a through hole (27) is formed between the piston (13) and the connecting ring (16) and in the outer wall of the unsealed tube (24). The test detection tool for the rubber barrel of the compression packer can detect rubber barrels of a plurality of models, and has the advantages of simple, efficient and accurate detection mode, low cost and the like.
Description
Technical field
The utility model relates to a kind of test testing tool of the compression type packer tubling that uses in oil field.
Background technology
Packer is one of requisite instrument in the oil extraction in oil field engineering, and packing element is the core component of packer.Therefore the sealing property of packing element is the key that guarantees the packer success.Conventional packer can be divided into two types of compression and expandings.For the packing element to packer detects, Chinese patent CN2580434Y, open October 15 2003 date, " rubber tube pressure tester " disclosed, Chinese patent CN201372765Y, on open Dec 30 2009 date, disclose " testing device of rubber cylinder of packer ".But above-mentioned testing device of rubber cylinder of packer exist measuring accuracy not high, use inconvenient etc. shortcoming.
The utility model content
In order to solve the poor technical matters of testing device of rubber cylinder of packer measuring accuracy in prior art, the utility model provides a kind of test testing tool of compression type packer tubling, the test testing tool of this compression type packer tubling not only can detect the packing element of a plurality of models, the utilization factor of raising instrument, saved and produced old, had more the advantages such as detection mode is simple, reliable, accurate.
the utility model for the technical scheme that solves its technical matters employing is: a kind of test testing tool of compression type packer tubling, comprise pipe core, separate the fluid cylinder overcoat of tube sealing and tubular, the left end of separating tube sealing is fixedly sleeved in the right-hand member of pipe core, the fluid cylinder overcoat is sheathed on to be separated outside tube sealing, the external diameter of pipe core is less than the internal diameter of fluid cylinder overcoat, the left end of fluid cylinder overcoat and the right-hand member that is set in described pipe core baffle ring butt outward, the right-hand member of fluid cylinder overcoat is connected with the deblocking seal of tube by the abutment ring of tubular, and the fluid cylinder overcoat is fixedly connected with abutment ring, form the toroidal cavity of sealing between fluid cylinder overcoat and pipe core, be provided with the piston of tubular in toroidal cavity and be sheathed on and separate the outer measurement ring of tube sealing, the left end of ring piston bar is sheathed on outside the right-hand member of pipe core, the external diameter of piston rod is less than the internal diameter of fluid cylinder overcoat, and piston rod is fixedly connected with baffle ring, the right-hand member of piston rod is fixedly connected with piston, piston can promote baffle ring, piston rod and measurement ring slide along the axis of pipe core, between piston and abutment ring, the sidewall of separating tube sealing is provided with through hole, be provided with the seal head for sealing in the pipe core of the right side of through hole, the fixedly sleeved fixedly regulating ring of packing element that is useful on outside the left end of pipe core.
The internal diameter of measuring ring equals to separate the external diameter of tube sealing, measures ring and is the retaining ring, measures ring and is merely able to unidirectional slip from right to left.
In toroidal cavity, separate the outer push rod that is arranged with tubular of tube sealing, the left end of push rod and measurement ring butt, the right-hand member of push rod is fixedly connected with piston.
Between the left end of piston and fluid cylinder overcoat, the inside surface of fluid cylinder overcoat is provided with the first raised ring, the first raised ring and baffle ring between, piston rod is arranged with retaining ring outward, the internal diameter of retaining ring equals the external diameter of piston rod, the external diameter of retaining ring is less than the internal diameter of fluid cylinder overcoat, and retaining ring is the retaining ring, and retaining ring is merely able to unidirectional slip from right to left.
The right-hand member of separating tube sealing is a minute claw structure, be arranged with stay pipe in the right-hand member of solution tube sealing, the outside surface of the right-hand member of stay pipe is provided with the second raised ring, the external diameter of the second raised ring equals minute internal diameter of claw structure, the left end of stay pipe is fixedly connected with seal head, the right-hand member of separating tube sealing is arranged with the fixed cover of tubular outward, the left end of fixed cover is fixedly connected with abutment ring, be provided with the 3rd raised ring in fixed cover, the internal diameter of the 3rd raised ring is threaded connection with the outside surface of minute claw structure, and stay pipe is connected by shear pin with the solution tube sealing.
The right-hand member of fixed cover is provided with plug, and plug is fixedly connected with fixed cover.
Between the left end of minute claw structure and fixed cover, separate the outer fixedly sleeved restraining position ring block of tube sealing, the external diameter of spacing ring is less than the internal diameter of fixed cover.
Between the left end of minute claw structure and stay pipe, the outside surface of stay pipe is provided with the 4th raised ring, and the 4th raised ring is connected by shear pin with the solution tube sealing.
Baffle ring is connected by shear pin with pipe core.
Between baffle ring and regulating ring, pipe core is arranged with a plurality of spacer rings for the isolation packing element outward.
The beneficial effects of the utility model are:
1, the test testing tool of this compression type packer tubling can realize that kit detects a plurality of model packing elements, and the utilization factor of instrument is high, and use cost is low.
2, the detection mode of the test testing tool of this compression type packer tubling is simple, reliable, accurate, does not have the dispute point.
3, the test testing tool of this compression type packer tubling not only can detect at normal temperatures, and can realize that the high temperature oil immersion of 350 ℃ detects.
Description of drawings
Be described in further detail below in conjunction with the test testing tool of accompanying drawing to compression type packer tubling described in the utility model.
Fig. 1 is the structural representation of test testing tool described in the utility model.
Fig. 2 is the structural representation at test testing tool right-hand member fixed cover described in the utility model position.
Fig. 3 is the perspective view of separating tube sealing.
1. pipe cores wherein, 2. regulating ring, 3. packing element, 4. spacer ring, 5. baffle ring, 6. shear pin, 7. piston rod, 8. set collar, 9. retaining ring, 10. fluid cylinder overcoat, 101. the first raised ring, 11. measure ring, 12. push rod, 13. piston, 14. O-ring seal, 15. O-ring seal, 16. abutment ring, 17. O-ring seal, 18. fixed cover, 181. the 3rd raised ring, 19. O-ring seal, 20. seal head, 21. shear pin, 22. spacing ring, 23. stay pipe, 231. the second raised ring, 232. the 4th raised ring, 24. solution tube sealing, 241. minute claw structure, 25. plug, 26. toroidal cavity, 27. through hole.
Embodiment
Be elaborated below in conjunction with the test testing tool of accompanying drawing to compression type packer tubling described in the utility model.a kind of test testing tool of compression type packer tubling, the test testing tool of described compression type packer tubling comprises pipe core 1, separate the fluid cylinder overcoat 10 of tube sealing 24 and tubular, the left end of separating tube sealing 24 is fixedly sleeved in the right-hand member of pipe core 1, fluid cylinder overcoat 10 is sheathed on to be separated outside tube sealing 24, the external diameter of pipe core 1 is less than the internal diameter of fluid cylinder overcoat 10, the left end of fluid cylinder overcoat 10 and the right-hand member that is set in described pipe core 1 baffle ring 5 butts outward, the right-hand member of fluid cylinder overcoat 10 is tightly connected with solution tube sealing 24 by the abutment ring 16 of tubular, and fluid cylinder overcoat 10 is fixedly connected with abutment ring 16, form the toroidal cavity 26 of sealing between fluid cylinder overcoat 10 and pipe core 1, be provided with the piston 13 of tubular in toroidal cavity 26 and be sheathed on and separate the outer measurement ring 11 of tube sealing 24, the left end of ring piston bar 7 is sheathed on outside the right-hand member of pipe core 1, the external diameter of piston rod 7 is less than the internal diameter of fluid cylinder overcoat 10, and piston rod 7 is fixedly connected with baffle ring 5, the right-hand member of piston rod 7 is fixedly connected with piston 13, piston 13 can promote baffle ring 5, piston rod 7 and measurement ring 11 axis along pipe core 1 slide, between piston 13 and abutment ring 16, the sidewall of separating tube sealing 24 is provided with through hole 27, be provided with the seal head 20 for sealing in the right side of through hole 27 pipe core 1, the fixedly sleeved fixedly regulating ring 2 of packing element 3 that is useful on outside the left end of pipe core 1, as shown in Figure 1.
during use, packing element 3 to be measured is set in outside pipe core 1 according to shown in Figure 1, again the test testing tool of this compression type packer tubling is connected in test pit or test casing, be connected with the left end of pipe core 1 by hydraulic pump, apply certain pressure, liquid enters fluid cylinder overcoat 10 by through hole 27, separate tube sealing 24, in the closed chamber that piston 13 and abutment ring 16 form, hydraulic drive piston 13 also drives piston rod 7, measure ring 11 and baffle ring 5 to left movement, packing element 3 is also promoted to be moved to the left by baffle ring 5 simultaneously, until packing element 3 is compressed to the tonnage of appointment, voltage stabilizing 5min treats that packing element 3 sets fully.Can judge the sealing situation of the compression tonnage lower rubber cylinder 3 of appointment this moment, by measurements, measures the ring 11 front and back distance of slip left of exerting pressure, and can also draw compression distance under this compression tonnage and the corresponding key indexs such as pressure-bearing situation.Compression tonnage and pressure-bearing data can be directly fluid cylinder area by the test testing tool of the manometric reading of hydraulic pump and this compression type packer tubling calculate.
The internal diameter of measuring ring 11 equals to separate the external diameter of tube sealing 24, and measuring ring 11 is the retaining ring, measures ring 11 and is merely able to unidirectional slip from right to left.The design of measuring ring 11 is the compression distances for Measurement accuracy compression type glue barrel 3, measurement ring 11 rear measuring accuracy is set can reaches 1mm.And in toroidal cavity 26, separate the outer push rod that is arranged with tubular 12 of tube sealing 24, the left end of push rod 12 and measurement ring 11 butts, the right-hand member of push rod 12 is fixedly connected with piston 13.
Between the left end of piston 13 and fluid cylinder overcoat 10, the inside surface of fluid cylinder overcoat 10 is provided with the first raised ring 101, the first raised ring 101 and baffle ring 5 between, the outer retaining ring 9 that is arranged with of piston rod 7, the internal diameter of retaining ring 9 equals the external diameter of piston rod 7, the external diameter of retaining ring 9 is less than the internal diameter of fluid cylinder overcoat 10, and retaining ring 9 is the retaining ring, and retaining ring 9 is merely able to unidirectional slip from right to left.The design of retaining ring 9 has guaranteed that packing element 3, after compressed, rollback does not occur, and when being applied with pressure and pressing down, packing element 3 still can reach seal request.Between retaining ring 9 and baffle ring 5, also be provided with the set collar 8 for fixing and locking ring 9, set collar 8 is fixedly connected with fluid cylinder overcoat 10.
for the ease of after pressure release, packing element 3 being taken out and measures the sliding distance of ring 11, the right-hand member of separating tube sealing 24 is a minute claw structure 241, be arranged with stay pipe 23 in the right-hand member of solution tube sealing 24, the outside surface of the right-hand member of stay pipe 23 is provided with the second raised ring 231, the external diameter of the second raised ring 231 equals minute internal diameter of claw structure 241, the left end of stay pipe 23 is fixedly connected with seal head 20, the right-hand member of separating tube sealing 24 is arranged with the fixed cover 18 of tubular outward, the left end of fixed cover 18 is fixedly connected with abutment ring 16, be provided with the 3rd raised ring 181 in fixed cover 18, the internal diameter of the 3rd raised ring 181 is threaded connection with the outside surface of minute claw structure 241, stay pipe 23 is connected by shear pin 21 with solution tube sealing 24, as Fig. 2, shown in Figure 3.When the needs deblocking, to inserting from left to right push rod in the left end of pipe core 1 and promoting seal head 20 and stay pipe 23 is cut off part shear pin 21, and continue to move right, when the second raised ring 231 separates with a minute claw structure 241, divide the screw thread of claw structure 241 outside surfaces will lose support, apply certain power and can make minute screw thread of claw structure 241 outside surfaces throw off and be connected with the internal thread of the inside surface of the 3rd raised ring 181.Thereby fixed cover 18, abutment ring 16, fluid cylinder overcoat 10, piston 13, push rod 12, piston rod 7 and baffle ring 5 are moved right together, packing element 3 deblocking fully.
The right-hand member of fixed cover 18 is provided with plug 25, and plug 25 is fixedly connected with fixed cover 18.25 position-limiting actions of plug, when stay pipe 23 moved right top to plug 25, seal head 20 and stay pipe 23 will no longer can continue to move right.
Between the left end of minute claw structure 241 and fixed cover 18, separate the outer fixedly sleeved restraining position ring block 22 of tube sealing 24, the external diameter of spacing ring 22 is less than the internal diameter of fixed cover 18.When deblocking, after abutment ring 16 pushed up spacing ring 22 to the right, fixed cover 18, abutment ring 16, fluid cylinder overcoat 10, piston 13, push rod 12, piston rod 7 and baffle ring 5 will no longer can continue to move right.
Between the left end of minute claw structure 241 and stay pipe 23, the outside surface of stay pipe 23 is provided with the 4th raised ring 232, the four raised rings 232 and is connected by shear pin 21 with solution tube sealing 24.
In addition, baffle ring 5 is connected by shear pin 6 with pipe core 1.Between baffle ring 5 and regulating ring 2, be arranged with a plurality of spacer rings 4 for isolation packing element 3 outside pipe core 1.Detect the purpose of multiple packing element for the test testing tool of realizing this compression type packer tubling, the internal diameter that pipe core 1, regulating ring 2, spacer ring 4 and baffle ring 5 can be different according to packing element 3 is selected corresponding size.Can meet the detection of the Multiple Type packing elements such as Y111, Y211, Y221, Y341, Y441, Y445, Y521 and Y541.
Be tightly connected by O-ring seal 14 between fluid cylinder overcoat 10 and piston 13, separate between tube sealing 24 and piston 13 and be tightly connected by O-ring seal 15, abutment ring 16 is conciliate tube sealing 24 with fluid cylinder overcoat 10 respectively by O-ring seal 17 and is tightly connected, and seal head 20 is tightly connected by O-ring seal 19 and solution tube sealing 24.Above-mentioned O-ring seal all adopts the fluorine cushion rubber, can guarantee under the high temperature of 350 ℃ to meet the operating mode of high temperature oil immersion without the disclosure risk point, can realize that the packing element under high temperature detects.
The course of work of the test testing tool of this compression type packer tubling is as follows:
The test testing tool of this compression type packer tubling is measured the initial position of ring 11 according to assembling record shown in Figure 1, again the test testing tool of this compression type packer tubling is connected in test pit or test casing, be connected with pipe core 1 by hydraulic pump, apply certain pressure, liquid enters described closed chamber by part through hole 27, and hydraulic drive piston 13 drives piston rod 7, push rod 12 and baffle ring 5 and cuts off part shear pin 6 to left movement.Baffle ring 5 promotion packing elements 3 and spacer ring 4, until packing element 3 is compressed to the tonnage of appointment, can be directly measured packing element by hydraulic pump and set tonnage and pressure-bearing data.After packing element tests upper pressure and presses down, insert push rod from pipe core 1 left end and promote seal head 20 and stay pipe 23 and cut off shear pin 21 and continue to move right top to part 25 plugs.The second raised ring 231 of stay pipe 23 separates with a minute claw structure 241 of separating tube sealing 24, after dividing claw structure 241 to lose support, can make minute claw structure 241 throw off and be connected with the 3rd raised ring 181 of fixed cover 18, then plug 25, fixed cover 18, abutment ring 16, fluid cylinder overcoat 10, piston 13, push rod 12, piston rod 7 and baffle ring 5 move right together, until abutment ring 16 withstands on spacing ring 22.This moment three complete deblockings of packing element 3.Tripping out this test testing tool can carry out the outward appearance of packing element 3, takes this test testing tool apart and measures ring 11 change in location by measurement and can learn the compression distance of packing element, thereby reached the purpose that detects compression type packer tubling.
The above; be only specific embodiment of the utility model, can not limit the scope that utility model is implemented with it, so the displacement of its equivalent assemblies; or, according to equivalent variations and modification that the utility model scope of patent protection is done, all should still belong to the category that this patent is contained.
Claims (10)
1. the test testing tool of a compression type packer tubling, it is characterized in that: the test testing tool of described compression type packer tubling comprises pipe core (1), separate the fluid cylinder overcoat (10) of tube sealing (24) and tubular, the left end of separating tube sealing (24) is fixedly sleeved in the right-hand member of pipe core (1), fluid cylinder overcoat (10) is sheathed on to be separated outside tube sealing (24), the external diameter of pipe core (1) is less than the internal diameter of fluid cylinder overcoat (10), the left end of fluid cylinder overcoat (10) and the right-hand member that is set in described pipe core (1) baffle ring (5) butt outward, the right-hand member of fluid cylinder overcoat (10) is tightly connected with solution tube sealing (24) by the abutment ring (16) of tubular, and fluid cylinder overcoat (10) is fixedly connected with abutment ring (16), form the toroidal cavity (26) of sealing between fluid cylinder overcoat (10) and pipe core (1), be provided with the piston (13) of tubular in toroidal cavity (26) and be sheathed on and separate the outer measurement ring (11) of tube sealing (24), the left end of ring piston bar (7) is sheathed on outside the right-hand member of pipe core (1), the external diameter of piston rod (7) is less than the internal diameter of fluid cylinder overcoat (10), and piston rod (7) is fixedly connected with baffle ring (5), the right-hand member of piston rod (7) is fixedly connected with piston (13), piston (13) can promote baffle ring (5), piston rod (7) and measurement ring (11) slide along the axis of pipe core (1), between piston (13) and abutment ring (16), the sidewall of separating tube sealing (24) is provided with through hole (27), be provided with the seal head (20) for sealing in the right side pipe core (1) of through hole (27), the fixedly sleeved fixedly regulating ring (2) of packing element (3) that is useful on outside the left end of pipe core (1).
2. test testing tool according to claim 1 is characterized in that: the internal diameter of measuring ring (11) equals to separate the external diameter of tube sealing (24), and measuring ring (11) be the retaining ring, measures to encircle (11) and be merely able to unidirectional slip from right to left.
3. test testing tool according to claim 1, it is characterized in that: in toroidal cavity (26), separate the outer push rod that is arranged with tubular (12) of tube sealing (24), the left end of push rod (12) and measurement ring (11) butt, the right-hand member of push rod (12) is fixedly connected with piston (13).
4. test testing tool according to claim 1, it is characterized in that: between the left end of piston (13) and fluid cylinder overcoat (10), the inside surface of fluid cylinder overcoat (10) is provided with the first raised ring (101), the first raised ring (101) and baffle ring (5) between, the outer retaining ring (9) that is arranged with of piston rod (7), the internal diameter of retaining ring (9) equals the external diameter of piston rod (7), the external diameter of retaining ring (9) is less than the internal diameter of fluid cylinder overcoat (10), retaining ring (9) is the retaining ring, and retaining ring (9) is merely able to unidirectional slip from right to left.
5. test testing tool according to claim 1, it is characterized in that: the right-hand member of separating tube sealing (24) is a minute claw structure (241), be arranged with stay pipe (23) in the right-hand member of solution tube sealing (24), the outside surface of the right-hand member of stay pipe (23) is provided with the second raised ring (231), the external diameter of the second raised ring (231) equals minute internal diameter of claw structure (241), the left end of stay pipe (23) is fixedly connected with seal head (20), the right-hand member of separating tube sealing (24) is arranged with the fixed cover (18) of tubular outward, the left end of fixed cover (18) is fixedly connected with abutment ring (16), be provided with the 3rd raised ring (181) in fixed cover (18), the internal diameter of the 3rd raised ring (181) is threaded connection with the outside surface of minute claw structure (241), stay pipe (23) is connected by shear pin (21) with solution tube sealing (24).
6. test testing tool according to claim 5, it is characterized in that: the right-hand member of fixed cover (18) is provided with plug (25), and plug (25) is fixedly connected with fixed cover (18).
7. test testing tool according to claim 5, it is characterized in that: between the left end of minute claw structure (241) and fixed cover (18), separate the outer fixedly sleeved restraining position ring block (22) of tube sealing (24), the external diameter of spacing ring (22) is less than the internal diameter of fixed cover (18).
8. test testing tool according to claim 5, it is characterized in that: between the left end of minute claw structure (241) and stay pipe (23), the outside surface of stay pipe (23) is provided with the 4th raised ring (232), and the 4th raised ring (232) is connected by shear pin (21) with solution tube sealing (24).
9. test testing tool according to claim 1, it is characterized in that: baffle ring (5) is connected by shear pin (6) with pipe core (1).
10. test testing tool according to claim 1, is characterized in that: between baffle ring (5) and regulating ring (2), be arranged with a plurality of spacer rings (4) for isolation packing element (3) outside pipe core (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202403188U CN203287257U (en) | 2013-05-07 | 2013-05-07 | Test detection tool for rubber barrel of compression packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202403188U CN203287257U (en) | 2013-05-07 | 2013-05-07 | Test detection tool for rubber barrel of compression packer |
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| Publication Number | Publication Date |
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| CN203287257U true CN203287257U (en) | 2013-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013202403188U Expired - Fee Related CN203287257U (en) | 2013-05-07 | 2013-05-07 | Test detection tool for rubber barrel of compression packer |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103293062A (en) * | 2013-05-07 | 2013-09-11 | 中国石油天然气股份有限公司 | Test detecting tool for compression-type packer rubber sleeves |
| CN104316410A (en) * | 2014-11-12 | 2015-01-28 | 中国石油天然气股份有限公司 | Experimental device for rubber cylinder of compression packer |
| CN104343435A (en) * | 2014-08-28 | 2015-02-11 | 中国海洋石油总公司 | Sealing component testing device |
| CN105157963A (en) * | 2015-07-03 | 2015-12-16 | 北京建筑大学 | Seal-type autoclave for testing self-expansion packer |
-
2013
- 2013-05-07 CN CN2013202403188U patent/CN203287257U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103293062A (en) * | 2013-05-07 | 2013-09-11 | 中国石油天然气股份有限公司 | Test detecting tool for compression-type packer rubber sleeves |
| CN103293062B (en) * | 2013-05-07 | 2015-04-08 | 中国石油天然气股份有限公司 | Test detecting tool for compression-type packer rubber sleeves |
| CN104343435A (en) * | 2014-08-28 | 2015-02-11 | 中国海洋石油总公司 | Sealing component testing device |
| CN104343435B (en) * | 2014-08-28 | 2017-11-17 | 中国海洋石油总公司 | The test device of seal |
| CN104316410A (en) * | 2014-11-12 | 2015-01-28 | 中国石油天然气股份有限公司 | Experimental device for rubber cylinder of compression packer |
| CN105157963A (en) * | 2015-07-03 | 2015-12-16 | 北京建筑大学 | Seal-type autoclave for testing self-expansion packer |
| CN105157963B (en) * | 2015-07-03 | 2017-10-20 | 北京建筑大学 | A kind of sealed autoclave tested Self-expandable packer |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131113 Termination date: 20210507 |
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| CF01 | Termination of patent right due to non-payment of annual fee |