EP2141254A4 - Steel ingot for forging and integral crankshaft - Google Patents

Steel ingot for forging and integral crankshaft

Info

Publication number
EP2141254A4
EP2141254A4 EP08722360A EP08722360A EP2141254A4 EP 2141254 A4 EP2141254 A4 EP 2141254A4 EP 08722360 A EP08722360 A EP 08722360A EP 08722360 A EP08722360 A EP 08722360A EP 2141254 A4 EP2141254 A4 EP 2141254A4
Authority
EP
European Patent Office
Prior art keywords
forging
steel ingot
integral crankshaft
crankshaft
integral
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
EP08722360A
Other languages
German (de)
French (fr)
Other versions
EP2141254A1 (en
EP2141254B1 (en
Inventor
Motohiro Nagao
Tetsushi Deura
Takashi Abiko
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel 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
Priority claimed from JP2007167849A external-priority patent/JP5089267B2/en
Priority claimed from JP2007207100A external-priority patent/JP4160103B1/en
Application filed by Kobe Steel Ltd filed Critical Kobe Steel Ltd
Publication of EP2141254A1 publication Critical patent/EP2141254A1/en
Publication of EP2141254A4 publication Critical patent/EP2141254A4/en
Application granted granted Critical
Publication of EP2141254B1 publication Critical patent/EP2141254B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D7/00—Casting ingots, e.g. from ferrous metals
    • 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
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • 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
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • 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
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • 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
    • C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
EP08722360.8A 2007-03-29 2008-03-18 Steel ingot for forging and integral crankshaft Not-in-force EP2141254B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2007089336 2007-03-29
JP2007167849A JP5089267B2 (en) 2007-06-26 2007-06-26 Integrated crankshaft
JP2007207100A JP4160103B1 (en) 2007-03-29 2007-08-08 Steel ingot for forging
PCT/JP2008/054966 WO2008120574A1 (en) 2007-03-29 2008-03-18 Steel ingot for forging and integral crankshaft

Publications (3)

Publication Number Publication Date
EP2141254A1 EP2141254A1 (en) 2010-01-06
EP2141254A4 true EP2141254A4 (en) 2011-09-14
EP2141254B1 EP2141254B1 (en) 2016-05-04

Family

ID=39808156

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08722360.8A Not-in-force EP2141254B1 (en) 2007-03-29 2008-03-18 Steel ingot for forging and integral crankshaft

Country Status (6)

Country Link
EP (1) EP2141254B1 (en)
KR (1) KR101121313B1 (en)
CN (1) CN101631886B (en)
ES (1) ES2572612T3 (en)
PL (1) PL2141254T3 (en)
WO (1) WO2008120574A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4964211B2 (en) * 2008-09-30 2012-06-27 株式会社神戸製鋼所 Forged product and crankshaft manufactured from the forged product
US8511903B2 (en) 2009-02-17 2013-08-20 Jtekt Corporation Wheel bearing device and manufacturing method therefor
CN101886227A (en) * 2010-06-23 2010-11-17 抚顺泰平铸造有限公司 ZG28Cr3Ni3Mo steel grade
US8562713B2 (en) * 2011-05-27 2013-10-22 A. Finkl & Sons Co. Flexible minimum energy utilization electric arc furnace system and processes for making steel products
JP5859384B2 (en) * 2012-06-06 2016-02-10 株式会社神戸製鋼所 Large high strength forged steel
CN104455051A (en) * 2014-11-17 2015-03-25 柳州市二和汽车零部件有限公司 Universal joint pin for automobile
CN104358855A (en) * 2014-11-17 2015-02-18 柳州市二和汽车零部件有限公司 Oil pump driving gear for automobile
CN104328327A (en) * 2014-11-17 2015-02-04 柳州市二和汽车零部件有限公司 Crankshaft gear for automobile
CN104533958A (en) * 2014-11-17 2015-04-22 柳州市二和汽车零部件有限公司 Automobile bearing shell
CN106222564B (en) * 2016-08-30 2018-09-04 张家港中环海陆特锻股份有限公司 Steel ingot and its smelting process avoid steel ingot forging crack method
CN106591680B (en) * 2016-11-09 2018-02-23 江阴兴澄特种钢铁有限公司 A kind of technique of continuous casting billet production deep-sea wellhead for production CrNiMo30C steel forging materials
CN106987779B (en) * 2017-05-11 2018-08-03 北京科技大学 A kind of metallurgical method of high-strength tenacity crankshaft steel Intragranular Acicular Ferrite

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6165289A (en) * 1996-02-08 2000-12-26 Nsk Ltd. Water-resistant long-life rolling bearing

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH108132A (en) * 1996-06-14 1998-01-13 Sumitomo Metal Ind Ltd Production of thick steel plate excellent in toughness
JPH1025536A (en) * 1996-07-11 1998-01-27 Sumitomo Metal Ind Ltd Steel material excellent in toughness in heat affected zone, and its production
JP3491612B2 (en) 2000-12-28 2004-01-26 愛知製鋼株式会社 Crankshaft steel with excellent machinability and wear resistance
JP4658695B2 (en) * 2005-06-03 2011-03-23 株式会社神戸製鋼所 Forging steel and crankshaft with excellent hydrogen cracking resistance
JP4502929B2 (en) * 2005-10-20 2010-07-14 株式会社神戸製鋼所 Case hardening steel with excellent rolling fatigue characteristics and grain coarsening prevention characteristics

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6165289A (en) * 1996-02-08 2000-12-26 Nsk Ltd. Water-resistant long-life rolling bearing

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2008120574A1 *

Also Published As

Publication number Publication date
EP2141254A1 (en) 2010-01-06
KR20090115886A (en) 2009-11-09
EP2141254B1 (en) 2016-05-04
PL2141254T3 (en) 2016-10-31
ES2572612T3 (en) 2016-06-01
KR101121313B1 (en) 2012-03-22
CN101631886A (en) 2010-01-20
WO2008120574A1 (en) 2008-10-09
CN101631886B (en) 2011-05-11

Similar Documents

Publication Publication Date Title
PL2141254T3 (en) Steel ingot for forging and integral crankshaft
PL1978124T3 (en) Forging steel, forging and crankshaft
EP2106866A4 (en) Continuous casting method of steel
PL2165788T3 (en) Method for continuously casting billet with small cross section
GB2455394B (en) Magnesium alloy member and method for making the same
EP2361703A4 (en) Device for continuously casting steel
EP2135967A4 (en) Forging steel
EP2213387A4 (en) Magnesium alloy hot-rolling mill
EP1873270A4 (en) Low alloy steel
EP2291552A4 (en) Direct silicon or reactive metal casting
EP2369025A4 (en) Magnesium alloy and magnesium alloy casting
PL2158985T3 (en) Continuous casting method of steel
EP2380679A4 (en) Forging method
PL2258499T3 (en) Continuous hammering device for continuously manufacturing cast pieces
PL2371468T3 (en) Continuous casting method of steel
EP2343391A4 (en) High-alloyed cold die steel
EP1930460A4 (en) Low alloy steel
IL198126A0 (en) Ductile magnesium alloy
PL2471966T3 (en) Easily castable, ductile AlSi alloy and method for producing a cast component using the AlSi cast alloy
TWI365916B (en) Cold-working steel
PL2331719T3 (en) Method for the selective acidic dezincification of steel scrap
EP2233595A4 (en) Aluminum alloy material for forging
GB2453655B (en) Reinforced metal casting
EP1941958A4 (en) Method of continuous casting of steel
EP2304065A4 (en) Improved method for filtering molten aluminum and molten aluminum alloys

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: 20091022

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20110811

RIC1 Information provided on ipc code assigned before grant

Ipc: C21C 7/10 20060101ALI20110805BHEP

Ipc: C21C 7/00 20060101ALI20110805BHEP

Ipc: B22D 7/00 20060101ALI20110805BHEP

Ipc: C22C 38/50 20060101ALI20110805BHEP

Ipc: C21C 7/072 20060101ALI20110805BHEP

Ipc: C22C 38/00 20060101AFI20110805BHEP

Ipc: C22C 38/60 20060101ALI20110805BHEP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Ref document number: 602008043991

Country of ref document: DE

Free format text: PREVIOUS MAIN CLASS: C22C0038000000

Ipc: B22D0007000000

17Q First examination report despatched

Effective date: 20140912

RIC1 Information provided on ipc code assigned before grant

Ipc: C22C 38/46 20060101ALI20140908BHEP

Ipc: C22C 38/02 20060101ALI20140908BHEP

Ipc: C22C 38/04 20060101ALI20140908BHEP

Ipc: C22C 38/06 20060101ALI20140908BHEP

Ipc: B22D 7/00 20060101AFI20140908BHEP

Ipc: C22C 38/44 20060101ALI20140908BHEP

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20151109

INTG Intention to grant announced

Effective date: 20151126

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 796448

Country of ref document: AT

Kind code of ref document: T

Effective date: 20160515

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2572612

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20160601

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602008043991

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20160504

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

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

Ref country code: FI

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: 20160504

Ref country code: NO

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: 20160804

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: 20160504

Ref country code: LT

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: 20160504

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 796448

Country of ref document: AT

Kind code of ref document: T

Effective date: 20160504

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

Ref country code: LV

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: 20160504

Ref country code: HR

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: 20160504

Ref country code: SE

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: 20160504

Ref country code: PT

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: 20160905

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: 20160805

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

Effective date: 20160504

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

Ref country code: SK

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: 20160504

Ref country code: EE

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: 20160504

Ref country code: DK

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: 20160504

Ref country code: RO

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: 20160504

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602008043991

Country of ref document: DE

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

Effective date: 20160504

Ref country code: AT

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: 20160504

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

Effective date: 20170207

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

Ref country code: SI

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: 20160504

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: 20170318

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

Ref country code: MC

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: 20160504

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: ST

Effective date: 20171130

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: 20170331

Ref country code: LU

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

Effective date: 20170318

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: 20170318

Ref country code: IE

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

Effective date: 20170318

Ref country code: LI

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

Effective date: 20170331

Ref country code: CH

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

Effective date: 20170331

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

Ref country code: MT

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

Effective date: 20170318

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

Ref country code: HU

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

Effective date: 20080318

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

Ref country code: BG

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: 20160504

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

Ref country code: CY

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

Effective date: 20160504

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

Ref country code: TR

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: 20160504

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

Ref country code: PL

Payment date: 20200116

Year of fee payment: 13

Ref country code: DE

Payment date: 20200303

Year of fee payment: 13

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

Ref country code: CZ

Payment date: 20200228

Year of fee payment: 13

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

Ref country code: IS

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: 20160904

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

Ref country code: ES

Payment date: 20200401

Year of fee payment: 13

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602008043991

Country of ref document: DE

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

Ref country code: CZ

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

Effective date: 20210318

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

Ref country code: DE

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

Effective date: 20211001

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20220523

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: 20210319

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

Ref country code: PL

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

Effective date: 20210318