EP0512254A3 - Process for uniform thermochemical treatment of steel pieces having difficult accessible areas - Google Patents

Process for uniform thermochemical treatment of steel pieces having difficult accessible areas Download PDF

Info

Publication number
EP0512254A3
EP0512254A3 EP19920105758 EP92105758A EP0512254A3 EP 0512254 A3 EP0512254 A3 EP 0512254A3 EP 19920105758 EP19920105758 EP 19920105758 EP 92105758 A EP92105758 A EP 92105758A EP 0512254 A3 EP0512254 A3 EP 0512254A3
Authority
EP
European Patent Office
Prior art keywords
steel pieces
thermochemical treatment
accessible areas
mpa
difficult accessible
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.)
Granted
Application number
EP19920105758
Other languages
German (de)
Other versions
EP0512254A2 (en
EP0512254B2 (en
EP0512254B1 (en
Inventor
Friedrich Dr. Dipl.-Phys. Preisser
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.)
ALD Vacuum Technologies GmbH
Original Assignee
Degussa GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6431301&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0512254(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Degussa GmbH filed Critical Degussa GmbH
Publication of EP0512254A2 publication Critical patent/EP0512254A2/en
Publication of EP0512254A3 publication Critical patent/EP0512254A3/en
Application granted granted Critical
Publication of EP0512254B1 publication Critical patent/EP0512254B1/en
Publication of EP0512254B2 publication Critical patent/EP0512254B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
    • C23C8/20—Carburising
    • C23C8/22—Carburising of ferrous surfaces
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
    • C23C8/24—Nitriding
    • C23C8/26—Nitriding of ferrous surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/166—Selection of particular materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Heat Treatment Of Articles (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Housings And Mounting Of Transformers (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Fire-Extinguishing Compositions (AREA)
  • Treatment Of Sludge (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)

Abstract

Hollow bodies or holes in steel components are subjected to thermomechanical treatments above 450 deg.C with reactive gases, partic. ammonia with 5-95 vol.% N or a C-generating gas, pref. methane at 870-1000 deg.C, at gas pressures above 0.2 MPa. Pref. the treatment is carried out at constant pressure, between 0.2 MPa and 10 MPa, depending on furnace capability.
EP92105758A 1991-05-08 1992-04-03 Process for uniform thermochemical treatment of steel pieces having difficult accessible areas Expired - Lifetime EP0512254B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4115135 1991-05-08
DE4115135A DE4115135C1 (en) 1991-05-08 1991-05-08

Publications (4)

Publication Number Publication Date
EP0512254A2 EP0512254A2 (en) 1992-11-11
EP0512254A3 true EP0512254A3 (en) 1993-03-24
EP0512254B1 EP0512254B1 (en) 1996-06-19
EP0512254B2 EP0512254B2 (en) 2000-01-19

Family

ID=6431301

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92105758A Expired - Lifetime EP0512254B2 (en) 1991-05-08 1992-04-03 Process for uniform thermochemical treatment of steel pieces having difficult accessible areas

Country Status (10)

Country Link
EP (1) EP0512254B2 (en)
JP (1) JP3258071B2 (en)
AT (1) ATE139579T1 (en)
CZ (1) CZ288263B6 (en)
DE (2) DE4115135C1 (en)
ES (1) ES2088515T5 (en)
HU (1) HU209457B (en)
PL (1) PL291528A1 (en)
RU (1) RU2052535C1 (en)
TW (1) TW223128B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4445154A1 (en) * 1994-12-17 1996-06-20 Fischer Artur Werke Gmbh Process for producing an expansion anchor made of corrosion-resistant steel
DE10062862C2 (en) * 2000-12-16 2003-03-27 Ald Vacuum Techn Ag Device for the uniform thermochemical treatment of metallic workpieces with a reactive gas
DE10109565B4 (en) 2001-02-28 2005-10-20 Vacuheat Gmbh Method and device for partial thermochemical vacuum treatment of metallic workpieces
DE10139620A1 (en) * 2001-08-11 2003-02-27 Bosch Gmbh Robert Fuel injection valve for internal combustion engines and a method for hardening the same
DE102004058838B4 (en) * 2004-12-06 2007-11-29 Schramm, Armin Nozzle insert made of steel
DE102005061781A1 (en) * 2005-12-23 2007-06-28 Schaeffler Kg Injector for automotive fuel injection system has laser-cut micro detents in contact zone sidewall around piston
DE102013006589A1 (en) * 2013-04-17 2014-10-23 Ald Vacuum Technologies Gmbh Method and device for the thermochemical hardening of workpieces
RU2651841C2 (en) * 2015-12-23 2018-04-24 Олег Владимирович Ольшанский Method for processing metal parts under conditions of acoustic resonant action of flow of compressible air and gaseous chemical reagents and device for implementation thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB749992A (en) * 1951-09-21 1956-06-06 United States Steel Corp Methods for nitriding metallic surfaces
US2779697A (en) * 1955-09-26 1957-01-29 United States Steel Corp Method of nitriding metallic surfaces
GB1309257A (en) * 1970-02-18 1973-03-07 Millingford Eng Co Ltd Method of nitriding hollow bodies
JPS52145343A (en) * 1976-05-29 1977-12-03 Kiyoichi Ogawa Pressurized nitriding
DE2851983A1 (en) * 1978-12-01 1980-06-04 Degussa METHOD FOR CARBONING HOLLOW BODIES, IN PARTICULAR NOZZLES
EP0485686A1 (en) * 1990-11-15 1992-05-20 Degussa Aktiengesellschaft Method of nitriding steel articles under pressure

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB114446A (en) * 1917-01-27 1918-03-27 British Carbonizing Company Lt Improvements in or relating to the Carburization and Case-hardening of Iron and Steel Articles.
US4160680A (en) * 1976-11-05 1979-07-10 Sola Basic Industries, Inc. Vacuum carburizing

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB749992A (en) * 1951-09-21 1956-06-06 United States Steel Corp Methods for nitriding metallic surfaces
US2779697A (en) * 1955-09-26 1957-01-29 United States Steel Corp Method of nitriding metallic surfaces
GB1309257A (en) * 1970-02-18 1973-03-07 Millingford Eng Co Ltd Method of nitriding hollow bodies
JPS52145343A (en) * 1976-05-29 1977-12-03 Kiyoichi Ogawa Pressurized nitriding
DE2851983A1 (en) * 1978-12-01 1980-06-04 Degussa METHOD FOR CARBONING HOLLOW BODIES, IN PARTICULAR NOZZLES
EP0485686A1 (en) * 1990-11-15 1992-05-20 Degussa Aktiengesellschaft Method of nitriding steel articles under pressure

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, unexamined applications, Field C, Band 5, Nr. 124, 11. August 1981 THE PATENT OFFICE JAPANESE GOVERNMENT Seite 6 C 66 *

Also Published As

Publication number Publication date
HU913870D0 (en) 1992-02-28
ATE139579T1 (en) 1996-07-15
TW223128B (en) 1994-05-01
HUT61056A (en) 1992-11-30
CS137592A3 (en) 1992-12-16
RU2052535C1 (en) 1996-01-20
JP3258071B2 (en) 2002-02-18
ES2088515T3 (en) 1996-08-16
JPH05132753A (en) 1993-05-28
EP0512254A2 (en) 1992-11-11
ES2088515T5 (en) 2000-05-01
DE59206595D1 (en) 1996-07-25
EP0512254B2 (en) 2000-01-19
PL291528A1 (en) 1992-11-16
EP0512254B1 (en) 1996-06-19
CZ288263B6 (en) 2001-05-16
HU209457B (en) 1994-06-28
DE4115135C1 (en) 1992-02-27

Similar Documents

Publication Publication Date Title
GB9715180D0 (en) Process for the treatment of austenitic stainless steel articles
CA2073137A1 (en) In-situ generation of heat treating atmospheres using non-cryogenically produced nitrogen
EP0512254A3 (en) Process for uniform thermochemical treatment of steel pieces having difficult accessible areas
CA2088659A1 (en) Apparatus and Process for Control of Nitric Oxide Emissions from Combustion Devices Using Vortex Rings and the Like
CA2326239A1 (en) Low pressure carbonitriding method for metal alloy parts
Murzyn et al. Carburizing With Membrane N sub 2: Process and Quality Issues
Preisser et al. Method of Nitriding Work Pieces of Steel Under Pressure
Taki et al. Plasma Nitriding of Pure Iron and Stainless Steel
Luiten et al. Vacuum Heat Treatment Equipment in Practical Application
UA10393A (en) method of producing coating from carbon on silicon carbide articles
Loser et al. High-pressure gas quenching with helium and hydrogen for the hardening of low-alloy steels
Li Tri-Stage Gas Nitrocarburising Process
Fei et al. The effects of rare earths in steels on the thermochemical treatments and the functional mechanisms of the rare earths
Stratton Controlled Atmospheres for Thermochemical Surface Engineering
Kanetake et al. Carburizing with carbon monoxide enriched gas
Precious Heat Treatment Using On-Site Nitrogen Sources
HUT51665A (en) Process for producing natural gas by condensate reciruation, suitable for being supplied by pipe-line
Du The Effect of Gas Pressure on the Ion-Nitriding Process
Streng et al. Diffusion of Hydrogen During Carburization and Tempering
Nakonieczny et al. On possibility to form fatigue properties of 4140 steel by nitriding and high-temperature tempering
Queille et al. Microprocessor Control of Thermal Cycles and Nitrogen-Based Furnace Atmospheres
Lapshin et al. Structure and Properties of Steel Surface Layers After Plasma Nitriding
Murai et al. Effect of alloying elements and oxygen potential on equilibrium carbon content in gas carburising
Yasuura et al. Method of Ion Nitriding Steel Workpieces
Zolciak et al. Atmospheres Produced Without the Use of a Generator but With the Simultaneous Application of Nitrogen for Scavenging the Furnace Vestibule

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

17P Request for examination filed

Effective date: 19920403

AK Designated contracting states

Kind code of ref document: A2

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

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

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

17Q First examination report despatched

Effective date: 19950202

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 IT LI LU NL SE

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19960619

Ref country code: DK

Effective date: 19960619

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19960619

REF Corresponds to:

Ref document number: 139579

Country of ref document: AT

Date of ref document: 19960715

Kind code of ref document: T

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

Ref country code: ES

Ref legal event code: BA2A

Ref document number: 2088515

Country of ref document: ES

Kind code of ref document: T3

REF Corresponds to:

Ref document number: 59206595

Country of ref document: DE

Date of ref document: 19960725

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2088515

Country of ref document: ES

Kind code of ref document: T3

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

Effective date: 19960806

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: BOVARD AG PATENTANWAELTE

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19970324

Year of fee payment: 6

PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

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

Ref country code: BE

Effective date: 19970430

Ref country code: LU

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

Effective date: 19970430

26 Opposition filed

Opponent name: IPSEN INTERNATIONAL GMBH

Effective date: 19970318

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: ALD VACUUM TECHNOLOGIES GMBH

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: DEGUSSA AG TRANSFER- ALD VACUUM TECHNOLOGIES GMBH

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

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: 19980403

PLAW Interlocutory decision in opposition

Free format text: ORIGINAL CODE: EPIDOS IDOP

PLAW Interlocutory decision in opposition

Free format text: ORIGINAL CODE: EPIDOS IDOP

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

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

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

27A Patent maintained in amended form

Effective date: 20000119

AK Designated contracting states

Kind code of ref document: B2

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

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

Ref country code: CH

Ref legal event code: AEN

Free format text: AUFRECHTERHALTUNG DES PATENTES IN GEAENDERTER FORM

GBTA Gb: translation of amended ep patent filed (gb section 77(6)(b)/1977)

Effective date: 20000223

ET3 Fr: translation filed ** decision concerning opposition
REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Free format text: ALD VACUUM TECHNOLOGIES GMBH TRANSFER- ALD VACUUM TECHNOLOGIES AG

REG Reference to a national code

Ref country code: ES

Ref legal event code: DC2A

Kind code of ref document: T5

Effective date: 20000320

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: GB

Payment date: 20100331

Year of fee payment: 19

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

Ref country code: FR

Payment date: 20100506

Year of fee payment: 19

Ref country code: ES

Payment date: 20100427

Year of fee payment: 19

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

Ref country code: IT

Payment date: 20100426

Year of fee payment: 19

Ref country code: DE

Payment date: 20100423

Year of fee payment: 19

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

Ref country code: CH

Payment date: 20100423

Year of fee payment: 19

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

Ref country code: SE

Payment date: 20100415

Year of fee payment: 19

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Owner name: ALD VACUUM TECHNOLOGIES AG

Free format text: ALD VACUUM TECHNOLOGIES AG#WILHELM-ROHN-STR. 35#63450 HANAU (DE) -TRANSFER TO- ALD VACUUM TECHNOLOGIES AG#WILHELM-ROHN-STR. 35#63450 HANAU (DE)

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

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: 20110403

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20111230

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

Ref country code: CH

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

Effective date: 20110430

Ref country code: DE

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

Effective date: 20111101

Ref country code: LI

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

Effective date: 20110430

Ref country code: FR

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

Effective date: 20110502

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59206595

Country of ref document: DE

Effective date: 20111101

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: 20110403

Ref country code: GB

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

Effective date: 20110403

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20120604

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: 20110404

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: 20110404