EP0626460B1 - Acier inoxydable austénitique à haute résistance à la corrosion par les milieux chlorurés et sulfuriques et utilisations - Google Patents

Acier inoxydable austénitique à haute résistance à la corrosion par les milieux chlorurés et sulfuriques et utilisations Download PDF

Info

Publication number
EP0626460B1
EP0626460B1 EP94401110A EP94401110A EP0626460B1 EP 0626460 B1 EP0626460 B1 EP 0626460B1 EP 94401110 A EP94401110 A EP 94401110A EP 94401110 A EP94401110 A EP 94401110A EP 0626460 B1 EP0626460 B1 EP 0626460B1
Authority
EP
European Patent Office
Prior art keywords
stainless steel
austenitic stainless
steel according
steel
equipment
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
EP94401110A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0626460A1 (fr
Inventor
François Dupoiron
Jean-Christophe Gagnepain
Michel Verneau
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Industeel Creusot
Original Assignee
Creusot Loire SA
Creusot Loire Industrie SA
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 Creusot Loire SA, Creusot Loire Industrie SA filed Critical Creusot Loire SA
Publication of EP0626460A1 publication Critical patent/EP0626460A1/fr
Application granted granted Critical
Publication of EP0626460B1 publication Critical patent/EP0626460B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C30/00—Alloys containing less than 50% by weight of each constituent
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese

Definitions

  • the present invention relates to stainless steel austenitic with high mechanical strength and high corrosion resistance.
  • stainless steels with high mechanical resistance and high corrosion resistance in chlorinated media and sulfuric media or even in media at a time chlorinated and sulfuric are superaustenitic steels, austenoferritic steels or superaustenitic steels with a high nitrogen content.
  • superaustenitic steels with a high nitrogen content are, for these applications, the steels which offer the better performance in terms of combination of characteristics mechanical and corrosion resistance. They are described by two European patents: EP-A-0.438.992 and EP-A-0.342.574.
  • the subject of the present invention is an austenitic stainless steel with high mechanical strength and high corrosion resistance, characterized in that it contains by weight: 23% ⁇ Cr ⁇ 28% 25% ⁇ Ni ⁇ 28% 4.5% ⁇ Mo ⁇ 7% 0.35% ⁇ N ⁇ 0.8% 0.5% ⁇ Mn ⁇ 5.4% C ⁇ 0.06% S ⁇ 0.010% If ⁇ 1% 0.5% ⁇ Cu ⁇ 3%, and at least one of the elements B, Nb, V, Al in the following contents: B 0.0001 to 0.003%, Nb 0.001 to 0.3%, V 0.001 to 0.3% and Al 0.001 to 0.1 %, the rest, with the exception of iron, being made up of impurities resulting from processing.
  • the carbon content is less than 0.04%.
  • this steel can contain from 1% to 2% copper.
  • the composition of the steel according to the invention is as follows: 25% ⁇ Cr ⁇ 26% 25% ⁇ Ni ⁇ 26% 6% ⁇ Mo ⁇ 7% 0.4% ⁇ N ⁇ 0.5% 2.5% ⁇ Mn ⁇ 3.5% C ⁇ 0.03% If ⁇ 0.3% 1% ⁇ Cu ⁇ 2%, the rest, with the exception of iron, being constituted by impurities resulting from the production.
  • the invention also relates to the use steel according to the invention for the manufacture of equipment pollution control from thermal power plants and household waste incineration plants, especially gas or smoke washing towers, gas lines or smoke and chimneys; for manufacturing equipment delignification, in particular by the process bisulfite, filtration and bleaching of the pulp paper; for manufacturing equipment for industry chemical in chlorinated or acidic medium and in particular for the manufacture of tanks, reservoirs, reactors, tubes pump casing and pump shafts; for the manufacture off-shore platform equipment subject to corrosion by sea water and / or hydrocarbons and in particular supports for flares, heat exchangers, separators, tubular plates, piping transport of sea water, pipes used for the transport of hydrocarbons, elements of protection of pylon areas in the vicinity of the free surface from the sea, mace rods, pump shafts, flanges connection, wellheads, manifolds and risers; for the manufacture road or rail transport tanks of chlorides or highly corrosive acids.
  • Such steel must contain less than 0.06% of carbon to avoid precipitation of carbides to grain boundaries which deteriorate corrosion resistance and it is preferable to limit this content to 0.04% and even better at 0.03%.
  • the steel always contains a little sulfur must be up to 0.010% which is favorable to machinability but which promotes corrosion by bites, too, it's better to have a sulfur content less than 0.01%.
  • copper between 0.5% and 3% and preferably between 1% and 2%; copper also has the advantage of improving machinability.
  • Additions of copper, vanadium, niobium, boron, aluminum are optional and can be made alone or in combination.
  • the main alloying elements have, for certain properties, effects all the more favorable as their content is high and for other properties, effects all the less unfavorable as the content is lower; therefore, it is preferable to choose the chemical composition in a composition range which is not too wide.
  • the domains of chromium, nickel and molybdenum must be limited to: 23% ⁇ Cr ⁇ 28% 25% ⁇ Ni ⁇ 28% 4.5% ⁇ Mo ⁇ 7%.
  • This steel may also contain Nb, V, B or Al as previously stated.
  • the steel according to the invention has an additional advantage which comes from the fact that the product A x R of the elongation at break by the break limit is very high (two times more than for the steels of the prior art used for transport) so that resistance to impact of the walls made with this steel is very high and in particular much higher than for steels of prior art.
  • This feature has the advantage of allowing to make tanks, containers or pipes for transporting much safer corrosives in the event of an impact, that the equivalent equipment produced with steels according to the prior art.
  • This steel makes it particularly suitable for the manufacture of reactors (scrubbers, washing tower, filter tanks, attack tanks), tubes (welded and seamless), chimneys, parts junction such as flanges, manifolds, flow lines, separators and road or rail transport tanks, for industries in which this equipment is subject to very severe corrosion by chlorinated media and / or pure or polluted sulfuric and in particular for off-shore oil exploitation platforms, for combustion smoke abatement facilities thermal power plants or incineration of household waste, for the preparation of paper pulp in particular by the process called "bisulfite", and in particular for filtration, bleaching and delignification equipment, for the chemical industry and more particularly for hydrometallurgy equipment and the industry fertilizer using mineral attack by media concentrated sulfurics.
  • This steel also makes it possible to carry out any part subject to abrasion / corrosion in environments chlorides and / or acids.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Paper (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Physical Vapour Deposition (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Heat Treatment Of Steel (AREA)
EP94401110A 1993-05-28 1994-05-18 Acier inoxydable austénitique à haute résistance à la corrosion par les milieux chlorurés et sulfuriques et utilisations Expired - Lifetime EP0626460B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9306468A FR2705689B1 (fr) 1993-05-28 1993-05-28 Acier inoxydable austénitique à haute résistance à la corrosion par les milieux chlorurés et sulfuriques et utilisations.
FR9306468 1993-05-28

Publications (2)

Publication Number Publication Date
EP0626460A1 EP0626460A1 (fr) 1994-11-30
EP0626460B1 true EP0626460B1 (fr) 2000-02-02

Family

ID=9447577

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94401110A Expired - Lifetime EP0626460B1 (fr) 1993-05-28 1994-05-18 Acier inoxydable austénitique à haute résistance à la corrosion par les milieux chlorurés et sulfuriques et utilisations

Country Status (11)

Country Link
US (1) US5480609A (da)
EP (1) EP0626460B1 (da)
AT (1) ATE189483T1 (da)
DE (1) DE69422850T2 (da)
DK (1) DK0626460T3 (da)
ES (1) ES2141806T3 (da)
FI (1) FI110010B (da)
FR (1) FR2705689B1 (da)
GR (1) GR3033108T3 (da)
NO (1) NO302623B1 (da)
PT (1) PT626460E (da)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2711674B1 (fr) * 1993-10-21 1996-01-12 Creusot Loire Acier inoxydable austénitique à hautes caractéristiques ayant une grande stabilité structurale et utilisations.
US5841046A (en) * 1996-05-30 1998-11-24 Crucible Materials Corporation High strength, corrosion resistant austenitic stainless steel and consolidated article
WO1999061673A1 (en) * 1998-05-27 1999-12-02 U.S. Department Of Commerce And National Institute Of Standards And Technology High nitrogen stainless steel
JP4312408B2 (ja) * 2000-03-15 2009-08-12 ハンチントン、アロイス、コーポレーション 耐蝕性オーステナイト合金
SE520027C2 (sv) * 2000-05-22 2003-05-13 Sandvik Ab Austenitisk legering
US20040156737A1 (en) * 2003-02-06 2004-08-12 Rakowski James M. Austenitic stainless steels including molybdenum
SE527177C2 (sv) * 2001-09-25 2006-01-17 Sandvik Intellectual Property Användning av ett austenitiskt rostfritt stål
SE525252C2 (sv) * 2001-11-22 2005-01-11 Sandvik Ab Superaustenitiskt rostfritt stål samt användning av detta stål
RU2254394C1 (ru) * 2004-03-16 2005-06-20 Открытое акционерное общество "Синарский трубный завод" (ОАО "СинТЗ") Высокопрочная аустенитная нержавеющая сталь и способ окончательной упрочняющей обработки изделий из нее
SE528008C2 (sv) * 2004-12-28 2006-08-01 Outokumpu Stainless Ab Austenitiskt rostfritt stål och stålprodukt
US7658883B2 (en) * 2006-12-18 2010-02-09 Schlumberger Technology Corporation Interstitially strengthened high carbon and high nitrogen austenitic alloys, oilfield apparatus comprising same, and methods of making and using same
US7985304B2 (en) 2007-04-19 2011-07-26 Ati Properties, Inc. Nickel-base alloys and articles made therefrom
US8430075B2 (en) * 2008-12-16 2013-04-30 L.E. Jones Company Superaustenitic stainless steel and method of making and use thereof
ES2891140T3 (es) 2011-05-26 2022-01-26 Ngenius Tech Limited Acero inoxidable austenítico
US20150337419A1 (en) * 2014-05-20 2015-11-26 Crs Holdings Inc. Austenitic Stainless Steel Alloy
US10179943B2 (en) 2014-07-18 2019-01-15 General Electric Company Corrosion resistant article and methods of making
SI3365473T1 (sl) 2015-10-19 2021-01-29 Ab Sandvik Materials Technology Nova avstenitna nerjavna zlitina
CN118326284B (zh) * 2024-06-13 2024-08-16 成都斯杰化工机械有限公司 一种耐腐蚀耐汽蚀不锈钢及其制备方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55100966A (en) * 1979-01-23 1980-08-01 Kobe Steel Ltd High strength austenite stainless steel having excellent corrosion resistance
SE441455B (sv) * 1983-10-21 1985-10-07 Avesta Ab Stal av austenitisk typ
CA1263041A (en) * 1984-11-13 1989-11-21 William Lawrence Mankins Nickel-chromium-molybdenum alloy
US4765957A (en) * 1986-12-29 1988-08-23 Carondelet Foundry Company Alloy resistant to seawater and other corrosive fluids
DE3716665A1 (de) * 1987-05-19 1988-12-08 Vdm Nickel Tech Korrosionsbestaendige legierung
NO891969L (no) * 1988-05-17 1989-11-20 Thyssen Edelstahlwerke Ag Korrosjonsbestandig austenittisk staal.
US4981646A (en) * 1989-04-17 1991-01-01 Carondelet Foundry Company Corrosion resistant alloy
SE465373B (sv) * 1990-01-15 1991-09-02 Avesta Ab Austenitiskt rostfritt staal

Also Published As

Publication number Publication date
DK0626460T3 (da) 2000-05-01
NO941991L (no) 1994-11-29
ES2141806T3 (es) 2000-04-01
US5480609A (en) 1996-01-02
FI942490L (fi) 1994-11-29
NO302623B1 (no) 1998-03-30
FI942490A0 (fi) 1994-05-27
FR2705689A1 (fr) 1994-12-02
DE69422850T2 (de) 2000-08-17
DE69422850D1 (de) 2000-03-09
NO941991D0 (no) 1994-05-27
GR3033108T3 (en) 2000-08-31
PT626460E (pt) 2000-06-30
FI110010B (fi) 2002-11-15
EP0626460A1 (fr) 1994-11-30
FR2705689B1 (fr) 1995-08-25
ATE189483T1 (de) 2000-02-15

Similar Documents

Publication Publication Date Title
EP0626460B1 (fr) Acier inoxydable austénitique à haute résistance à la corrosion par les milieux chlorurés et sulfuriques et utilisations
EP0649913B1 (fr) Acier inoxydable austénitique à hautes caractéristiques ayant une grande stabilité structurale et utilisations
KR20160075746A (ko) 해양응용을 위한 내식스틸
WO2011151186A1 (fr) Acier faiblement allie a limite d'elasticite elevee et haute resistance a la fissuration sous contrainte par les sulfures
Grubb et al. Corrosion of wrought stainless steels
US4765957A (en) Alloy resistant to seawater and other corrosive fluids
KR850001766B1 (ko) 인을 함유한 고용접성 내해수성 강
EP2228578A1 (en) High nitrogen stainless steel wire for flexible pipe
FR2939449A1 (fr) Acier faiblement allie a limite d'elasticite elevee et haute resistance a la fissuration sous contrainte par les sulfures.
JPS6032709B2 (ja) 含ｐ高溶接性耐食鋼
US5723089A (en) Line pipe metal arc welded with wire alloy
Glover Application of stainless steels in chemical plant corrosive environments
Schweitzer Environmental Degradation of Engineering Materials
Nicolio et al. Duplex alloys; challenging corrosion in the new millennium
WO2001044531A1 (fr) Conduite flexible comportant des armures en acier bas carbone
Crum Corrosion by hydrogen chloride and hydrochloric acid
Todd Nickel containing materials for marine applications
Lunde Offshore Use of Titanium: Benefits and Possible Limitations
Graf et al. Production of large diameter linepipe for the transportation of highly corrosive crude oil and natural gas
KIVISÄKK Duplex Stainless Steels in Sea Water
Lagneborg et al. Stainless Steel in the 90's
FR2820197A1 (fr) Dispositif reducteur d'encrassement d'un echangeur thermique tubulaire
Hoffman A new corrosion-resistant stainless steel on the South African scene
David Emerging Applications for Titanium-Based Alloys
Olsson Modern stainless steels to combat chloride-induced localized corrosion

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI LU NL PT SE

17P Request for examination filed

Effective date: 19941017

17Q First examination report despatched

Effective date: 19970904

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI LU NL PT SE

REF Corresponds to:

Ref document number: 189483

Country of ref document: AT

Date of ref document: 20000215

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 69422850

Country of ref document: DE

Date of ref document: 20000309

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2141806

Country of ref document: ES

Kind code of ref document: T3

ITF It: translation for a ep patent filed
REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: FRENCH

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20000425

REG Reference to a national code

Ref country code: PT

Ref legal event code: SC4A

Free format text: AVAILABILITY OF NATIONAL TRANSLATION

Effective date: 20000405

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20030416

Year of fee payment: 10

Ref country code: LU

Payment date: 20030416

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GR

Payment date: 20030422

Year of fee payment: 10

Ref country code: DK

Payment date: 20030422

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IE

Payment date: 20030423

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PT

Payment date: 20030527

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040518

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040518

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040601

BECH Be: change of holder

Owner name: *INDUSTEEL CREUSOT

Effective date: 20041014

BECN Be: change of holder's name

Owner name: *INDUSTEEL CREUSOT

Effective date: 20041014

REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: INDUSTEEL CREUSOT

Free format text: INDUSTEEL (FRANCE)#4 PLACE DE LA PYRAMIDE 9#92800 PUTEAUX (FR) -TRANSFER TO- INDUSTEEL CREUSOT#LA DEFENSE 7, 11/13 COURS VALMY#92800 PUTEAUX (FR)

Ref country code: CH

Ref legal event code: PFA

Owner name: USINOR INDUSTEEL (FRANCE)

Free format text: CREUSOT-LOIRE INDUSTRIE#IMMEUBLE ILE-DE-FRANCE 4 PLACE DE LA PYRAMIDE LA DEFENCE 9#F-92800 PUTEAUX (FR) -TRANSFER TO- USINOR INDUSTEEL (FRANCE)#4 PLACE DE LA PYRAMIDE 9#92800 PUTEAUX (FR)

Ref country code: CH

Ref legal event code: PFA

Owner name: INDUSTEEL (FRANCE)

Free format text: USINOR INDUSTEEL (FRANCE)#4 PLACE DE LA PYRAMIDE 9#92800 PUTEAUX (FR) -TRANSFER TO- INDUSTEEL (FRANCE)#4 PLACE DE LA PYRAMIDE 9#92800 PUTEAUX (FR)

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041118

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041203

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

REG Reference to a national code

Ref country code: PT

Ref legal event code: MM4A

Effective date: 20041118

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20041201

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

Ref country code: FR

Ref legal event code: CD

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20070417

Year of fee payment: 14

Ref country code: AT

Payment date: 20070417

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20070418

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20070511

Year of fee payment: 14

Ref country code: DE

Payment date: 20070511

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20070604

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20070511

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20070526

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20070516

Year of fee payment: 14

BERE Be: lapsed

Owner name: *INDUSTEEL CREUSOT

Effective date: 20080531

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20080518

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080531

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080518

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20090119

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080602

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20081202

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080518

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20080519

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080518

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080519

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080519