EP2599565A4 - Bending work method for heat exchanger and heat exchanger - Google Patents

Bending work method for heat exchanger and heat exchanger Download PDF

Info

Publication number
EP2599565A4
EP2599565A4 EP11812360.3A EP11812360A EP2599565A4 EP 2599565 A4 EP2599565 A4 EP 2599565A4 EP 11812360 A EP11812360 A EP 11812360A EP 2599565 A4 EP2599565 A4 EP 2599565A4
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
work method
bending work
bending
exchanger
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
EP11812360.3A
Other languages
German (de)
French (fr)
Other versions
EP2599565B1 (en
EP2599565A1 (en
Inventor
Akihiro Fujiwara
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.)
Daikin Industries Ltd
Original Assignee
Daikin Industries 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 Daikin Industries Ltd filed Critical Daikin Industries Ltd
Publication of EP2599565A1 publication Critical patent/EP2599565A1/en
Publication of EP2599565A4 publication Critical patent/EP2599565A4/en
Application granted granted Critical
Publication of EP2599565B1 publication Critical patent/EP2599565B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D7/00Bending rods, profiles, or tubes
    • B21D7/02Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment
    • B21D7/024Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment by a swinging forming member
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00Making other particular articles
    • B21D53/02Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
    • B21D53/08Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of both metal tubes and sheet metal
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/047Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
    • F28D1/0471Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits having a non-circular cross-section
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00Tubular elements; Assemblies of tubular elements
    • F28F1/02Tubular elements of cross-section which is non-circular
    • F28F1/022Tubular elements of cross-section which is non-circular with multiple channels

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
EP11812360.3A 2010-07-30 2011-07-21 Bending work method for heat exchanger Active EP2599565B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010172363A JP5012972B2 (en) 2010-07-30 2010-07-30 Heat exchanger bending method and heat exchanger
PCT/JP2011/066538 WO2012014769A1 (en) 2010-07-30 2011-07-21 Bending work method for heat exchanger and heat exchanger

Publications (3)

Publication Number Publication Date
EP2599565A1 EP2599565A1 (en) 2013-06-05
EP2599565A4 true EP2599565A4 (en) 2017-06-07
EP2599565B1 EP2599565B1 (en) 2022-10-26

Family

ID=45529981

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11812360.3A Active EP2599565B1 (en) 2010-07-30 2011-07-21 Bending work method for heat exchanger

Country Status (4)

Country Link
EP (1) EP2599565B1 (en)
JP (1) JP5012972B2 (en)
CN (1) CN103025451B (en)
WO (1) WO2012014769A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5413480B2 (en) * 2012-04-09 2014-02-12 ダイキン工業株式会社 Air conditioner
CN102699155B (en) * 2012-06-05 2013-11-20 上海交通大学 Bending processing method of heat exchanger
JP6400418B2 (en) * 2014-10-01 2018-10-03 アロン化成株式会社 Manufacturing method of ribbed bent pipe and heat treatment jig used therefor
BR112018016274B1 (en) 2016-03-09 2022-11-08 Fibertex Personal Care A/S METHOD FOR MANUFACTURING A NON-WOVEN FABRIC
CN106111841B (en) * 2016-08-26 2019-05-07 奥美森智能装备股份有限公司 Bending machine
JP6358381B2 (en) * 2016-10-13 2018-07-18 ダイキン工業株式会社 Heat exchanger
CN111272530B (en) * 2018-12-05 2023-04-18 中广核工程有限公司 Manufacturing method of coil pipe of nuclear power high-temperature sampling cooler
US20210063089A1 (en) 2019-09-03 2021-03-04 Mahle International Gmbh Curved heat exchanger and method of manufacturing
JP7558007B2 (en) * 2020-09-11 2024-09-30 三菱重工サーマルシステムズ株式会社 Heat transfer tube forming method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2394753A1 (en) * 2010-06-09 2011-12-14 Sierra S.p.A. Apparatus and method for bending a heat exchange assembly

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0685936B2 (en) * 1986-05-15 1994-11-02 ダイキン工業株式会社 Cross fin coil bending machine
JPH0744326Y2 (en) * 1991-02-06 1995-10-11 京進工業株式会社 Heat exchanger bending device
JP2568968Y2 (en) * 1991-10-25 1998-04-22 昭和アルミニウム株式会社 Heat exchanger
JP3517935B2 (en) * 1993-06-02 2004-04-12 株式会社日立製作所 Bending equipment
JPH09276940A (en) * 1996-04-19 1997-10-28 Toyo Radiator Co Ltd Mandrel for bending core of heat exchanger and method for bending core
JPH1085879A (en) * 1996-09-17 1998-04-07 Nippon Light Metal Co Ltd Bending method of fine-plate heat exchanger, and finned heat exchanger
JPH10166091A (en) * 1996-12-04 1998-06-23 Matsushita Refrig Co Ltd Device for bending peripheral finned tube
JP2002090082A (en) * 2000-09-19 2002-03-27 Japan Climate Systems Corp Heat exchanger
JP2002224756A (en) * 2001-02-07 2002-08-13 Hitachi Ltd Method for bending heat exchanger
JP3903888B2 (en) * 2002-09-10 2007-04-11 株式会社デンソー Heat exchanger
JP5320846B2 (en) * 2008-06-20 2013-10-23 ダイキン工業株式会社 Heat exchanger
CN201470729U (en) * 2009-08-26 2010-05-19 厦门市易洁卫浴有限公司 Pipe bender capable of realizing continuously bending two arcs

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2394753A1 (en) * 2010-06-09 2011-12-14 Sierra S.p.A. Apparatus and method for bending a heat exchange assembly

Also Published As

Publication number Publication date
CN103025451B (en) 2015-01-21
CN103025451A (en) 2013-04-03
JP5012972B2 (en) 2012-08-29
EP2599565B1 (en) 2022-10-26
JP2012030256A (en) 2012-02-16
EP2599565A1 (en) 2013-06-05
WO2012014769A1 (en) 2012-02-02

Similar Documents

Publication Publication Date Title
EP2428746B8 (en) Heat exchanger
EP2599565A4 (en) Bending work method for heat exchanger and heat exchanger
EP2578982A4 (en) Heat exchanger and method for manufacturing same
EP2399089B8 (en) Heat exchanger
EP2565545A4 (en) Heat exchange device
EP2623917A4 (en) Heat exchanging member
EP2565552A4 (en) Heat exchanger
GB201105333D0 (en) Heat exchanger
EP2410241A4 (en) Heat exchanger
EP2623915A4 (en) Heat exchanger
EP2713136B8 (en) Heat exchanger
EP2573494A4 (en) Heat exchanger
EP2508647A4 (en) Anti-corrosion treatment method for aluminium heat exchanger
HK1170296A1 (en) Heat exchanger and method for manufacturing such
EP2374150A4 (en) Heat exchangers and related methods
PL2550489T3 (en) Heat exchanger
EP2581065A4 (en) Water-vapor-generating heating tool
GB201021627D0 (en) Torque tool positioning system
HUP1000641A2 (en) Heat exchanger panel and its production method
EP2532998A4 (en) Heat exchanger
EP2434243A4 (en) Heat exchanger and method for producing the same
EP2682677A4 (en) Heat exchanger
EP2246655A4 (en) Heat exchanger
PL2550488T3 (en) Heat exchanger
EP2540791A4 (en) Heat storage member and method for producing same

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

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

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20130220

AK Designated contracting states

Kind code of ref document: A1

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

DAX Request for extension of the european patent (deleted)
RA4 Supplementary search report drawn up and despatched (corrected)

Effective date: 20170508

RIC1 Information provided on ipc code assigned before grant

Ipc: F28F 1/32 20060101ALI20170428BHEP

Ipc: B21D 53/08 20060101AFI20170428BHEP

Ipc: B21D 7/024 20060101ALI20170428BHEP

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

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20210413

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

Free format text: STATUS: EXAMINATION IS IN PROGRESS

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

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

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20220624

RAP3 Party data changed (applicant data changed or rights of an application transferred)

Owner name: DAIKIN INDUSTRIES, LTD.

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

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

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM 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: 1526682

Country of ref document: AT

Kind code of ref document: T

Effective date: 20221115

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602011073398

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20221026

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1526682

Country of ref document: AT

Kind code of ref document: T

Effective date: 20221026

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: 20221026

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

Effective date: 20221026

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: 20230227

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: 20230126

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: 20221026

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: 20221026

Ref country code: ES

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: 20221026

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: 20221026

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

Ref country code: RS

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: 20221026

Ref country code: PL

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: 20221026

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: 20221026

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: 20230226

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: 20221026

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: 20230127

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230525

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602011073398

Country of ref document: DE

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

Ref country code: SM

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: 20221026

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: 20221026

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: 20221026

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: 20221026

Ref country code: CZ

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: 20221026

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: 20221026

Ref country code: AL

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: 20221026

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: 20230727

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: 20221026

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: 20221026

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: 20221026

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20230731

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: 20230721

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: 20230721

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

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: 20230731

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: 20221026

Ref country code: BE

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

Effective date: 20230731

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

Ref country code: IE

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

Effective date: 20230721

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

Ref country code: GB

Payment date: 20240530

Year of fee payment: 14

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

Ref country code: IE

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

Effective date: 20230721

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

Ref country code: FR

Payment date: 20240611

Year of fee payment: 14

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

Ref country code: DE

Payment date: 20240529

Year of fee payment: 14