NZ517491A - Apparatus for and method of anchoring a first conduit to a second conduit - Google Patents

Apparatus for and method of anchoring a first conduit to a second conduit

Info

Publication number
NZ517491A
NZ517491A NZ517491A NZ51749100A NZ517491A NZ 517491 A NZ517491 A NZ 517491A NZ 517491 A NZ517491 A NZ 517491A NZ 51749100 A NZ51749100 A NZ 51749100A NZ 517491 A NZ517491 A NZ 517491A
Authority
NZ
New Zealand
Prior art keywords
conduit
inflatable
expandable
inflatable device
expander
Prior art date
Application number
NZ517491A
Other languages
English (en)
Inventor
Peter Oosterling
Original Assignee
E2Tech Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by E2Tech Ltd filed Critical E2Tech Ltd
Publication of NZ517491A publication Critical patent/NZ517491A/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/02—Subsoil filtering
    • E21B43/10—Setting of casings, screens, liners or the like in wells
    • E21B43/103—Setting of casings, screens, liners or the like in wells of expandable casings, screens, liners, or the like
    • E21B43/105—Expanding tools specially adapted therefor
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
    • E21B23/01—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for anchoring the tools or the like
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/02—Subsoil filtering
    • E21B43/10—Setting of casings, screens, liners or the like in wells
    • E21B43/103—Setting of casings, screens, liners or the like in wells of expandable casings, screens, liners, or the like

Landscapes

  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Pipe Accessories (AREA)
  • Piles And Underground Anchors (AREA)
  • Earth Drilling (AREA)
  • Clamps And Clips (AREA)
NZ517491A 1999-09-06 2000-09-06 Apparatus for and method of anchoring a first conduit to a second conduit NZ517491A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9920935.5A GB9920935D0 (en) 1999-09-06 1999-09-06 Apparatus for and a method of anchoring a first conduit to a second conduit
PCT/GB2000/003406 WO2001018354A1 (en) 1999-09-06 2000-09-06 Apparatus for and method of anchoring a first conduit to a second conduit

Publications (1)

Publication Number Publication Date
NZ517491A true NZ517491A (en) 2004-05-28

Family

ID=10860363

Family Applications (1)

Application Number Title Priority Date Filing Date
NZ517491A NZ517491A (en) 1999-09-06 2000-09-06 Apparatus for and method of anchoring a first conduit to a second conduit

Country Status (13)

Country Link
US (2) US6860329B1 (https=)
EP (2) EP1210502B1 (https=)
JP (1) JP4508510B2 (https=)
AU (1) AU777793B2 (https=)
CA (1) CA2388360C (https=)
DE (2) DE60032615T2 (https=)
EA (1) EA003385B1 (https=)
GB (1) GB9920935D0 (https=)
MX (1) MXPA02002420A (https=)
NO (1) NO331581B1 (https=)
NZ (1) NZ517491A (https=)
OA (1) OA12013A (https=)
WO (1) WO2001018354A1 (https=)

Families Citing this family (104)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6745845B2 (en) 1998-11-16 2004-06-08 Shell Oil Company Isolation of subterranean zones
US6823937B1 (en) 1998-12-07 2004-11-30 Shell Oil Company Wellhead
US6557640B1 (en) 1998-12-07 2003-05-06 Shell Oil Company Lubrication and self-cleaning system for expansion mandrel
US7121352B2 (en) 1998-11-16 2006-10-17 Enventure Global Technology Isolation of subterranean zones
AU6981001A (en) 1998-11-16 2002-01-02 Shell Oil Co Radial expansion of tubular members
US7231985B2 (en) 1998-11-16 2007-06-19 Shell Oil Company Radial expansion of tubular members
US7603758B2 (en) 1998-12-07 2009-10-20 Shell Oil Company Method of coupling a tubular member
US7357188B1 (en) 1998-12-07 2008-04-15 Shell Oil Company Mono-diameter wellbore casing
US7195064B2 (en) 1998-12-07 2007-03-27 Enventure Global Technology Mono-diameter wellbore casing
US7552776B2 (en) 1998-12-07 2009-06-30 Enventure Global Technology, Llc Anchor hangers
US7363984B2 (en) 1998-12-07 2008-04-29 Enventure Global Technology, Llc System for radially expanding a tubular member
GB2344606B (en) 1998-12-07 2003-08-13 Shell Int Research Forming a wellbore casing by expansion of a tubular member
US6739392B2 (en) 1998-12-07 2004-05-25 Shell Oil Company Forming a wellbore casing while simultaneously drilling a wellbore
US7185710B2 (en) 1998-12-07 2007-03-06 Enventure Global Technology Mono-diameter wellbore casing
CA2310878A1 (en) 1998-12-07 2000-12-07 Shell Internationale Research Maatschappij B.V. Lubrication and self-cleaning system for expansion mandrel
AU770359B2 (en) 1999-02-26 2004-02-19 Shell Internationale Research Maatschappij B.V. Liner hanger
US7055608B2 (en) 1999-03-11 2006-06-06 Shell Oil Company Forming a wellbore casing while simultaneously drilling a wellbore
CA2306656C (en) 1999-04-26 2006-06-06 Shell Internationale Research Maatschappij B.V. Expandable connector for borehole tubes
US7350563B2 (en) 1999-07-09 2008-04-01 Enventure Global Technology, L.L.C. System for lining a wellbore casing
GB2390387B (en) * 1999-11-01 2004-04-07 Shell Oil Co Wellbore casing repair
US7048067B1 (en) 1999-11-01 2006-05-23 Shell Oil Company Wellbore casing repair
US7234531B2 (en) 1999-12-03 2007-06-26 Enventure Global Technology, Llc Mono-diameter wellbore casing
US7516790B2 (en) 1999-12-03 2009-04-14 Enventure Global Technology, Llc Mono-diameter wellbore casing
US8746028B2 (en) 2002-07-11 2014-06-10 Weatherford/Lamb, Inc. Tubing expansion
US7275602B2 (en) * 1999-12-22 2007-10-02 Weatherford/Lamb, Inc. Methods for expanding tubular strings and isolating subterranean zones
US7100684B2 (en) 2000-07-28 2006-09-05 Enventure Global Technology Liner hanger with standoffs
CA2466685C (en) 2000-09-18 2010-11-23 Shell Oil Company Liner hanger with sliding sleeve valve
US7100685B2 (en) 2000-10-02 2006-09-05 Enventure Global Technology Mono-diameter wellbore casing
WO2002029199A1 (en) 2000-10-02 2002-04-11 Shell Oil Company Method and apparatus for casing expansion
US7121351B2 (en) * 2000-10-25 2006-10-17 Weatherford/Lamb, Inc. Apparatus and method for completing a wellbore
CA2428819A1 (en) 2001-01-03 2002-07-11 Enventure Global Technology Mono-diameter wellbore casing
US7410000B2 (en) 2001-01-17 2008-08-12 Enventure Global Technology, Llc. Mono-diameter wellbore casing
JP4399121B2 (ja) * 2001-02-13 2010-01-13 富士フイルム株式会社 撮像システム
GB0304335D0 (en) * 2003-02-26 2003-04-02 Weatherford Lamb Tubing expansion
GB0109711D0 (en) * 2001-04-20 2001-06-13 E Tech Ltd Apparatus
US7172027B2 (en) 2001-05-15 2007-02-06 Weatherford/Lamb, Inc. Expanding tubing
GB2394979B (en) * 2001-07-06 2005-11-02 Eventure Global Technology Liner hanger
AU2002318438A1 (en) 2001-07-06 2003-01-21 Enventure Global Technology Liner hanger
US7258168B2 (en) 2001-07-27 2007-08-21 Enventure Global Technology L.L.C. Liner hanger with slip joint sealing members and method of use
GB0119977D0 (en) * 2001-08-16 2001-10-10 E2 Tech Ltd Apparatus and method
GB2409218B (en) 2001-08-20 2006-03-15 Enventure Global Technology Apparatus and method for radially expanding tubular members including an adjustable tubular expansion device
US7546881B2 (en) 2001-09-07 2009-06-16 Enventure Global Technology, Llc Apparatus for radially expanding and plastically deforming a tubular member
US7793721B2 (en) 2003-03-11 2010-09-14 Eventure Global Technology, Llc Apparatus for radially expanding and plastically deforming a tubular member
WO2003023178A2 (en) 2001-09-07 2003-03-20 Enventure Global Technology Adjustable expansion cone assembly
GB2421258B (en) 2001-11-12 2006-08-09 Enventure Global Technology Mono diameter wellbore casing
WO2003058022A2 (en) 2001-12-27 2003-07-17 Enventure Global Technology Seal receptacle using expandable liner hanger
US7377326B2 (en) 2002-08-23 2008-05-27 Enventure Global Technology, L.L.C. Magnetic impulse applied sleeve method of forming a wellbore casing
US7424918B2 (en) 2002-08-23 2008-09-16 Enventure Global Technology, L.L.C. Interposed joint sealing layer method of forming a wellbore casing
WO2004027786A2 (en) 2002-09-20 2004-04-01 Enventure Global Technology Protective sleeve for expandable tubulars
US6681862B2 (en) 2002-01-30 2004-01-27 Halliburton Energy Services, Inc. System and method for reducing the pressure drop in fluids produced through production tubing
US7156182B2 (en) * 2002-03-07 2007-01-02 Baker Hughes Incorporated Method and apparatus for one trip tubular expansion
EP1346746B1 (en) * 2002-03-18 2006-10-11 WILLIAM COOK EUROPE ApS Medical device for gripping an elongated member
US6854521B2 (en) 2002-03-19 2005-02-15 Halliburton Energy Services, Inc. System and method for creating a fluid seal between production tubing and well casing
EP1985797B1 (en) 2002-04-12 2011-10-26 Enventure Global Technology Protective sleeve for threated connections for expandable liner hanger
CA2482278A1 (en) 2002-04-15 2003-10-30 Enventure Global Technology Protective sleeve for threaded connections for expandable liner hanger
GB2406125B (en) 2002-05-29 2006-11-01 Enventure Global Technology Radially expanding a tubular member
AU2003274310A1 (en) 2002-06-10 2003-12-22 Enventure Global Technology Mono-diameter wellbore casing
WO2004020895A2 (en) * 2002-08-30 2004-03-11 Enventure Global Technology Method of manufacturing an insulated pipeline
AU2003263852A1 (en) 2002-09-20 2004-04-08 Enventure Global Technology Self-lubricating expansion mandrel for expandable tubular
CA2499007C (en) * 2002-09-20 2012-08-07 Enventure Global Technology Bottom plug for forming a mono diameter wellbore casing
US7739917B2 (en) 2002-09-20 2010-06-22 Enventure Global Technology, Llc Pipe formability evaluation for expandable tubulars
WO2004048750A2 (en) * 2002-11-26 2004-06-10 Shell Internationale Research Maatschappij B.V. Method of installing a tubular assembly in a wellbore
US7886831B2 (en) 2003-01-22 2011-02-15 Enventure Global Technology, L.L.C. Apparatus for radially expanding and plastically deforming a tubular member
JP2006517011A (ja) 2003-01-27 2006-07-13 エンベンチャー グローバル テクノロジー 管状部材放射状拡大用潤滑システム
GB2429996B (en) 2003-02-26 2007-08-29 Enventure Global Technology Apparatus for radially expanding and plastically deforming a tubular member
GB2415988B (en) 2003-04-17 2007-10-17 Enventure Global Technology Apparatus for radially expanding and plastically deforming a tubular member
US7195073B2 (en) * 2003-05-01 2007-03-27 Baker Hughes Incorporated Expandable tieback
CN100387804C (zh) * 2003-05-05 2008-05-14 国际壳牌研究有限公司 用于膨胀管子的膨胀装置
US7104322B2 (en) 2003-05-20 2006-09-12 Weatherford/Lamb, Inc. Open hole anchor and associated method
US20050166387A1 (en) 2003-06-13 2005-08-04 Cook Robert L. Method and apparatus for forming a mono-diameter wellbore casing
CA2471053C (en) 2003-06-16 2007-11-06 Weatherford/Lamb, Inc. Borehole tubing expansion using two expansion devices
GB0315997D0 (en) * 2003-07-09 2003-08-13 Weatherford Lamb Expanding tubing
US7712522B2 (en) 2003-09-05 2010-05-11 Enventure Global Technology, Llc Expansion cone and system
US7819185B2 (en) 2004-08-13 2010-10-26 Enventure Global Technology, Llc Expandable tubular
US20070000664A1 (en) * 2005-06-30 2007-01-04 Weatherford/Lamb, Inc. Axial compression enhanced tubular expansion
CA2555563C (en) * 2005-08-05 2009-03-31 Weatherford/Lamb, Inc. Apparatus and methods for creation of down hole annular barrier
US7726395B2 (en) * 2005-10-14 2010-06-01 Weatherford/Lamb, Inc. Expanding multiple tubular portions
GB0525410D0 (en) * 2005-12-14 2006-01-25 Weatherford Lamb Expanding Multiple Tubular Portions
US7503396B2 (en) * 2006-02-15 2009-03-17 Weatherford/Lamb Method and apparatus for expanding tubulars in a wellbore
WO2008031832A1 (en) * 2006-09-14 2008-03-20 Shell Internationale Research Maatschappij B.V. Method of expanding a tubular element
CA2616055C (en) * 2007-01-03 2012-02-21 Weatherford/Lamb, Inc. System and methods for tubular expansion
US8157007B2 (en) * 2007-04-20 2012-04-17 Saltel Industries Method for casing using multiple expanded areas and using at least one inflatable bladder
FR2918700B1 (fr) * 2007-07-12 2009-10-16 Saltel Ind Soc Par Actions Sim Procede de chemisage d'un puits ou d'une canalisation au moyen d'une vessie gonflable.
US9551201B2 (en) 2008-02-19 2017-01-24 Weatherford Technology Holdings, Llc Apparatus and method of zonal isolation
CA2715647C (en) * 2008-02-19 2013-10-01 Weatherford/Lamb, Inc. Expandable packer
US8636058B2 (en) 2008-04-09 2014-01-28 Cameron International Corporation Straight-bore back pressure valve
CA2749593C (en) * 2008-04-23 2012-03-20 Weatherford/Lamb, Inc. Monobore construction with dual expanders
GB2463261B (en) * 2008-09-04 2012-09-26 Statoilhydro Asa Narrow well bore
US7921921B2 (en) * 2008-09-24 2011-04-12 Baker Hughes Incorporated Downhole backup system and method
CN102257242A (zh) * 2008-11-18 2011-11-23 国际壳牌研究有限公司 通过增加压缩来改变膨胀力
NO330698B1 (no) * 2009-07-06 2011-06-14 Reelwell As Et nedihulls bronnverktoy med ekspansjonsverktoy og en fremgangsmate for anvendelse derav
FR2942496B1 (fr) * 2010-05-31 2011-10-07 Saltel Ind Dispositif de support d'un equipement a l'interieur d'un puits, un procede pour sa fixation et un procede de mise en place d'un tel equipement
US9850726B2 (en) 2011-04-27 2017-12-26 Weatherford Technology Holdings, Llc Expandable open-hole anchor
US8875783B2 (en) 2011-04-27 2014-11-04 Weatherford/Lamb, Inc. Expansion system for an expandable tubular assembly
US9109435B2 (en) 2011-10-20 2015-08-18 Baker Hughes Incorporated Monobore expansion system—anchored liner
CN104508238B (zh) * 2012-07-06 2017-06-13 梅塔井下公司 管连接
US10648297B2 (en) 2012-07-30 2020-05-12 Weatherford/Lamb, Inc. Expandable liner
US10030467B2 (en) 2014-03-20 2018-07-24 Saudi Arabian Oil Company Method and apparatus for sealing an undesirable formation zone in the wall of a wellbore
US9494020B2 (en) 2014-04-09 2016-11-15 Weatherford Technology Holdings, Llc Multiple diameter expandable straddle system
US10329861B2 (en) * 2016-09-27 2019-06-25 Baker Hughes, A Ge Company, Llc Liner running tool and anchor systems and methods
CN109386246B (zh) * 2017-08-08 2021-01-05 中国石油化工股份有限公司 一种用于回接筒扫塞、磨铣的钻具及方法
US10844700B2 (en) 2018-07-02 2020-11-24 Saudi Arabian Oil Company Removing water downhole in dry gas wells
US11555571B2 (en) 2020-02-12 2023-01-17 Saudi Arabian Oil Company Automated flowline leak sealing system and method
US11808108B2 (en) 2021-08-17 2023-11-07 Weatherford Technology Holdings, Llc Dual position isolator seal

Family Cites Families (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2214226A (en) 1939-03-29 1940-09-10 English Aaron Method and apparatus useful in drilling and producing wells
US3167122A (en) * 1962-05-04 1965-01-26 Pan American Petroleum Corp Method and apparatus for repairing casing
US3203451A (en) * 1962-08-09 1965-08-31 Pan American Petroleum Corp Corrugated tube for lining wells
US3353599A (en) * 1964-08-04 1967-11-21 Gulf Oil Corp Method and apparatus for stabilizing formations
US3412565A (en) 1966-10-03 1968-11-26 Continental Oil Co Method of strengthening foundation piling
US3529667A (en) * 1969-01-10 1970-09-22 Lynes Inc Inflatable,permanently set,drillable element
US3785193A (en) 1971-04-10 1974-01-15 Kinley J Liner expanding apparatus
US3776307A (en) 1972-08-24 1973-12-04 Gearhart Owen Industries Apparatus for setting a large bore packer in a well
US5027894A (en) * 1990-05-01 1991-07-02 Davis-Lynch, Inc. Through the tubing bridge plug
US5220959A (en) * 1991-09-24 1993-06-22 The Gates Rubber Company Gripping inflatable packer
US5297633A (en) * 1991-12-20 1994-03-29 Snider Philip M Inflatable packer assembly
MY108743A (en) * 1992-06-09 1996-11-30 Shell Int Research Method of greating a wellbore in an underground formation
US5366012A (en) 1992-06-09 1994-11-22 Shell Oil Company Method of completing an uncased section of a borehole
FR2704898B1 (fr) * 1993-05-03 1995-08-04 Drillflex Structure tubulaire de preforme ou de matrice pour le tubage d'un puits.
FR2737533B1 (fr) 1995-08-04 1997-10-24 Drillflex Manchon tubulaire gonflable pour tuber ou obturer un puits ou une canalisation
MY116920A (en) * 1996-07-01 2004-04-30 Shell Int Research Expansion of tubings
US5833001A (en) 1996-12-13 1998-11-10 Schlumberger Technology Corporation Sealing well casings
GB9710746D0 (en) * 1997-05-27 1997-07-16 Petroleum Eng Services Downhole pressure activated device
US6085838A (en) 1997-05-27 2000-07-11 Schlumberger Technology Corporation Method and apparatus for cementing a well
GB9723031D0 (en) * 1997-11-01 1998-01-07 Petroline Wellsystems Ltd Downhole tubing location method
US6073692A (en) * 1998-03-27 2000-06-13 Baker Hughes Incorporated Expanding mandrel inflatable packer
GB2344606B (en) * 1998-12-07 2003-08-13 Shell Int Research Forming a wellbore casing by expansion of a tubular member
DE69926802D1 (de) * 1998-12-22 2005-09-22 Weatherford Lamb Verfahren und vorrichtung zum profilieren und verbinden von rohren
US6253850B1 (en) * 1999-02-24 2001-07-03 Shell Oil Company Selective zonal isolation within a slotted liner
US6607032B2 (en) 2000-09-11 2003-08-19 Baker Hughes Incorporated Multi-layer screen and downhole completion method
GB0026063D0 (en) 2000-10-25 2000-12-13 Weatherford Lamb Downhole tubing
GB2409218B (en) 2001-08-20 2006-03-15 Enventure Global Technology Apparatus and method for radially expanding tubular members including an adjustable tubular expansion device
GB2408278B (en) 2001-10-03 2006-02-22 Enventure Global Technology Mono-diameter wellbore casing
GB2398320B (en) 2001-12-10 2005-03-23 Shell Int Research Isolation of subterranean zones
US20030183395A1 (en) * 2002-04-01 2003-10-02 Jones Gary W. System and method for preventing sand production into a well casing having a perforated interval

Also Published As

Publication number Publication date
OA12013A (en) 2006-04-19
CA2388360C (en) 2008-11-18
DE60038638D1 (de) 2008-05-29
DE60032615T2 (de) 2007-09-13
DE60032615D1 (de) 2007-02-08
DE60038638T2 (de) 2009-06-10
US6860329B1 (en) 2005-03-01
AU777793B2 (en) 2004-10-28
US7124823B2 (en) 2006-10-24
EP1555386A1 (en) 2005-07-20
MXPA02002420A (es) 2005-06-06
EP1555386B1 (en) 2008-04-16
WO2001018354A1 (en) 2001-03-15
CA2388360A1 (en) 2001-03-15
EP1210502B1 (en) 2006-12-27
JP4508510B2 (ja) 2010-07-21
EA200200338A1 (ru) 2002-10-31
EA003385B1 (ru) 2003-04-24
US20050133225A1 (en) 2005-06-23
GB9920935D0 (en) 1999-11-10
NO20021081D0 (no) 2002-03-05
NO20021081L (no) 2002-03-14
NO331581B1 (no) 2012-01-30
EP1210502A1 (en) 2002-06-05
JP2003508661A (ja) 2003-03-04
AU7021000A (en) 2001-04-10

Similar Documents

Publication Publication Date Title
EP1210502B1 (en) Apparatus for and method of anchoring a first conduit to a second conduit
US6789622B1 (en) Apparatus for and a method of anchoring an expandable conduit
CA2450840C (en) Method of and apparatus for casing a borehole
CA2450879C (en) Apparatus for and method of radial expansion of a tubular member
JP3442394B2 (ja) ボアホールにおけるケーシング構築方法
US6742598B2 (en) Method of expanding a sand screen
JPH07507610A (ja) 地層中に坑井を設ける方法
US8201635B2 (en) Apparatus and methods for expanding tubular elements
WO1993013293A1 (en) Inflatable packer assembly
CN101720378A (zh) 用于使管状元件膨胀的装置和方法
US20130048308A1 (en) Integrated Continuous Liner Expansion Method
CN101238272B (zh) 形成井下环形阻挡层的装置和方法
US20170218737A1 (en) Inflatable Expanded Liner Hanger Assembly with Weight Set Liner Top Packer
CN101772617A (zh) 用于改变地层和/或管状物的应力状态的方法

Legal Events

Date Code Title Description
PSEA Patent sealed
RENW Renewal (renewal fees accepted)
RENW Renewal (renewal fees accepted)
RENW Renewal (renewal fees accepted)
RENW Renewal (renewal fees accepted)

Free format text: PATENT RENEWED FOR 7 YEARS UNTIL 06 SEP 2020 BY CPA GLOBAL

Effective date: 20130725

EXPY Patent expired