EP1307309A1 - Verfahren zum erzeugen von brammen aus stahl - Google Patents
Verfahren zum erzeugen von brammen aus stahlInfo
- Publication number
- EP1307309A1 EP1307309A1 EP01955369A EP01955369A EP1307309A1 EP 1307309 A1 EP1307309 A1 EP 1307309A1 EP 01955369 A EP01955369 A EP 01955369A EP 01955369 A EP01955369 A EP 01955369A EP 1307309 A1 EP1307309 A1 EP 1307309A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- strand
- determined
- force
- amplitude
- oscillation
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/16—Controlling or regulating processes or operations
- B22D11/20—Controlling or regulating processes or operations for removing cast stock
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4998—Combined manufacture including applying or shaping of fluent material
- Y10T29/49988—Metal casting
- Y10T29/49991—Combined with rolling
Definitions
- the invention relates to a method for producing slabs from steel, wherein the strand leaves a mold with melt enclosed by a strand shell, and, in a downstream strand guide, the jaw width of guide rollers mounted in segments with upper and lower frames is steplessly followed by adjusting elements connecting them Steps is adjustable, whereby
- the jaw width is changed by means of oscillation around a center line of the jaw width in such a way that the dynamic influences on the guide rollers are negligibly small
- the amplitude of the jaw width oscillation is set in a size which does not cause any plastic deformation of the strand shell
- the jaw width is set to a predeterminable dimension and / or is guided in a pressure-controlled manner via at least one adjusting element.
- the aim of the method described in DE 197 20 768 C1 is to create a basis for determination by means of which the mouth width can be set exactly over the entire strand guidance using simple measurement and computing means, and the current position of the sump tip within the Can determine slab safely.
- the method is based on a dynamic measurement by means of excitation of the strand in oscillation, with the help of which it can be recognized whether a trend towards a larger or smaller mouth width, away from the optimal mouth width, occurs at a measuring point, in order to then detect the deviation with targeted ones Correct measures.
- the positioning force results in a hysteresis curve relative to the jaw width. This has a relatively small area when the shell is still thin and the swamp is relatively large.
- the hysteresis curve on the other hand, has a relatively large area if the shell continues to grow and the sump volume decreases, and assumes a particularly slim shape when the strand is completely solid.
- the jaw width is changed with an oscillation around a predeterminable center line of the desired slab thickness.
- Force-displacement characteristic curves are evaluated, for which purpose the slope of the characteristic curves in the force-displacement plane and their intersection are taken into account, among other things, for the required evaluation.
- the selected oscillation size should be selected in such a way that the dynamic influences on the strand shell, which is still relatively thin after leaving the mold, are kept negligibly small, the amplitude of the oscillating jaw width being set to a size , which prevents plastic deformation of the strand shell, according to the person skilled in the art, this information is not given a clear, comprehensible teaching on the basis of technical action.
- the known method assumes, at least implicitly, that the amplitude of the force-displacement characteristic curve on which the calculation is based is determined within the scope of only a single oscillation period, that is to say that the entire measurement path has been covered with one stroke.
- the object of the invention is to improve and design the known method in such a way that the disadvantages and difficulties of damaging deformation of the strand shell or malfunctions are almost certain when it is carried out using optimal measurement results to avoid their structure such as cracking.
- a diagram of the mouth width adjustment is determined from a large number of force-displacement measurements along the strand, which is made in the manner of a chain from a large number small force / displacement curves, each in the form of a hysteresis, which can be determined individually by means of an oscillation with a comparatively small amplitude.
- a comparison with values in this database provides information about the internal width compared to the optimal internal width.
- An embodiment of the method further provides that from a change in the area of a hysteresis curve - e.g. B. Decrease in area - the location of the swamp tip can be determined.
- a force-displacement diagram of the width adjustment This consists of a large number of small force-displacement curves, each of which was determined individually using an oscillation with a low amplitude. From this, a safe and quick determination and setting of the optimal mouth width is recognizable and possible for the practical casting operation. After an oscillation with the smallest amplitude, this shows whether the jaw width is too large or too small and needs to be corrected.
- the invention represents an “X-ray image” of the strand and optimally achieves the object stated at the beginning.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Heat Treatment Of Steel (AREA)
- Coating With Molten Metal (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Reinforcement Elements For Buildings (AREA)
- Prostheses (AREA)
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10039016 | 2000-08-10 | ||
| DE10039016A DE10039016B4 (de) | 2000-08-10 | 2000-08-10 | Verfahren zum Erzeugen von Brammen aus Stahl |
| PCT/EP2001/008577 WO2002011925A1 (de) | 2000-08-10 | 2001-07-25 | Verfahren zum erzeugen von brammen aus stahl |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1307309A1 true EP1307309A1 (de) | 2003-05-07 |
| EP1307309B1 EP1307309B1 (de) | 2004-05-26 |
Family
ID=7651949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01955369A Expired - Lifetime EP1307309B1 (de) | 2000-08-10 | 2001-07-25 | Verfahren zum erzeugen von brammen aus stahl |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US6935408B2 (de) |
| EP (1) | EP1307309B1 (de) |
| JP (1) | JP2004505776A (de) |
| KR (1) | KR100817173B1 (de) |
| CN (1) | CN1234483C (de) |
| AT (1) | ATE267654T1 (de) |
| AU (1) | AU2001277552A1 (de) |
| DE (2) | DE10039016B4 (de) |
| RU (1) | RU2262412C2 (de) |
| UA (1) | UA74589C2 (de) |
| WO (1) | WO2002011925A1 (de) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10224533A1 (de) * | 2002-05-31 | 2003-12-18 | Sms Demag Ag | Verfahren zur Ermittlung der Reibkraft bei einem erzwungenen Schwingungen ausgesetzten System |
| DE10349962B3 (de) * | 2003-10-24 | 2005-06-02 | Ingo Dr. Schubert | Anordnung zur Ermittlung der Konsistenz eines Gießstranges in einer Stranggießalage und/oder Maulweite derselben |
| US7613870B2 (en) * | 2004-11-18 | 2009-11-03 | International Business Machines Corporation | Efficient memory usage in systems including volatile and high-density memories |
| DE102006016375B4 (de) * | 2006-04-05 | 2023-02-16 | Sms Group Gmbh | Verfahren und Einrichtung zum Bestimmen der Kernerstarrung und/oder der Sumpfspitze beim Stranggießen von Metallen, insbesondere von Stahlwerkstoffen |
| US20110023352A1 (en) * | 2007-12-27 | 2011-02-03 | Knuth Mark E | Alkylester fatty acid blends and uses therefor |
| CN102310181B (zh) * | 2011-08-05 | 2013-03-13 | 河北钢铁股份有限公司邯郸分公司 | 动态轻压下扇形段变形量在线测定与补偿方法 |
| CN103048242A (zh) * | 2013-01-21 | 2013-04-17 | 中冶赛迪电气技术有限公司 | 连铸坯固相率和凝固末端的检测方法及检测装置 |
| CN104751288B (zh) * | 2015-03-30 | 2018-10-09 | 北京首钢自动化信息技术有限公司 | 一种钢卷分段多维在线质量判定系统及其方法 |
| CN113732075A (zh) * | 2021-09-07 | 2021-12-03 | 重庆钢铁股份有限公司 | 板坯测宽分流方法 |
| CN120912072B (zh) * | 2025-10-13 | 2025-12-23 | 中国水利水电第七工程局有限公司 | 大吨位预应力锚索张拉质量智能评估系统 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2133144B2 (de) * | 1971-07-03 | 1973-09-27 | Concast Ag, Zuerich (Schweiz) | Verfahren und Vorrichtung zum Ausfordern und Richten eines Stranges in einer Stranggiessanlage |
| US3891025A (en) | 1972-06-29 | 1975-06-24 | Schloemann Siemag Ag | Apparatus for withdrawing a casting and feeding a dummy bar in a continuous casting machine for steel |
| JPS5134823A (en) * | 1974-09-18 | 1976-03-24 | Nippon Steel Corp | Renzokuchuzo no chuhenatsumiseigyohoho |
| JPS5530311A (en) * | 1978-08-22 | 1980-03-04 | Nippon Steel Corp | Induction and guidance method for cast piece of continuous casting |
| JPS56131051A (en) * | 1979-12-26 | 1981-10-14 | Nippon Steel Corp | Roll interval controller |
| DE3716510A1 (de) * | 1987-05-16 | 1988-12-01 | Korf Engineering Gmbh | Vorrichtung zum richten eines bogenfoermigen gegossenen stahlstranges |
| DE3907905C2 (de) * | 1988-07-04 | 1999-01-21 | Mannesmann Ag | Stranggießverfahren |
| DE19720768C1 (de) * | 1997-05-07 | 1999-01-14 | Mannesmann Ag | Verfahren und Vorrichtung zum Erzeugen von Brammen aus Stahl |
| JP2000079457A (ja) * | 1998-09-02 | 2000-03-21 | Nkk Corp | 連続鋳造機のロールセグメント間隔制御装置 |
| JP2001052911A (ja) * | 1999-08-11 | 2001-02-23 | Seiko Epson Corp | 磁石材料の製造方法、薄帯状磁石材料、磁石粉末およびボンド磁石 |
-
2000
- 2000-08-10 DE DE10039016A patent/DE10039016B4/de not_active Expired - Lifetime
-
2001
- 2001-07-25 CN CNB018139558A patent/CN1234483C/zh not_active Expired - Lifetime
- 2001-07-25 DE DE50102426T patent/DE50102426D1/de not_active Expired - Lifetime
- 2001-07-25 AU AU2001277552A patent/AU2001277552A1/en not_active Abandoned
- 2001-07-25 UA UA2003032064A patent/UA74589C2/uk unknown
- 2001-07-25 EP EP01955369A patent/EP1307309B1/de not_active Expired - Lifetime
- 2001-07-25 RU RU2003106433/02A patent/RU2262412C2/ru active
- 2001-07-25 AT AT01955369T patent/ATE267654T1/de active
- 2001-07-25 US US10/344,053 patent/US6935408B2/en not_active Expired - Lifetime
- 2001-07-25 WO PCT/EP2001/008577 patent/WO2002011925A1/de not_active Ceased
- 2001-07-25 JP JP2002517248A patent/JP2004505776A/ja active Pending
- 2001-07-25 KR KR1020037001858A patent/KR100817173B1/ko not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| See references of WO0211925A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US6935408B2 (en) | 2005-08-30 |
| JP2004505776A (ja) | 2004-02-26 |
| WO2002011925A1 (de) | 2002-02-14 |
| DE10039016B4 (de) | 2010-02-25 |
| DE10039016A1 (de) | 2002-02-21 |
| RU2262412C2 (ru) | 2005-10-20 |
| US20040006862A1 (en) | 2004-01-15 |
| ATE267654T1 (de) | 2004-06-15 |
| CN1446135A (zh) | 2003-10-01 |
| DE50102426D1 (de) | 2004-07-01 |
| KR20030020460A (ko) | 2003-03-08 |
| UA74589C2 (en) | 2006-01-16 |
| KR100817173B1 (ko) | 2008-03-27 |
| CN1234483C (zh) | 2006-01-04 |
| EP1307309B1 (de) | 2004-05-26 |
| AU2001277552A1 (en) | 2002-02-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE19720768C1 (de) | Verfahren und Vorrichtung zum Erzeugen von Brammen aus Stahl | |
| EP0331870B1 (de) | Lagereinrichtung | |
| DE69017976T2 (de) | Vorrichtung und Verfahren zur Regelung einer Doppelrollen-Strangegiessvorrichtung. | |
| EP0350431A2 (de) | Stranggiessverfahren für die Erzeugung von Brammen mit einer gegenüber dem Gusszustand verringerten Dicke | |
| AT401744B (de) | Verfahren und anlage zum stranggiessen | |
| DE3335713A1 (de) | Vorrichtung zum aufwickeln von folienbahnen | |
| DE3115461C2 (de) | ||
| EP0393365A2 (de) | Verfahren und Vorrichtung für die Feuchtmittelführung einer Offset-Druckmaschine | |
| DE19639297C2 (de) | Verfahren und Vorrichtung für Hochgeschwindigkeits-Stranggießanlagen mit einer Strangdickenreduktion während der Erstarrung | |
| EP1307309A1 (de) | Verfahren zum erzeugen von brammen aus stahl | |
| DE2538141A1 (de) | Verfahren und vorrichtung zum auffinden von unrichtig positionierten rollen, insbesondere in einer stranggiessmaschine | |
| DE1527761C3 (de) | Einrichtung für den betriebsmäßigen Ausgleich der Änderung der Balligkeit von Arbeitswalzen einer Walzenstraße | |
| DE2444443C2 (de) | Verfahren zum Einhalten einer bstimmten Lage der Spitze des flüssigen Kerns in einem Strang beim Stranggießen von Stahl | |
| DE2530032A1 (de) | Verfahren und vorrichtung zur bestimmung der auf einen stranggusskoerper bei dessen verfestigung in einer stranggiessmaschine einwirkenden kraefte | |
| DE3822939C1 (en) | Continuous casting method for the production of slabs with a reduced thickness relative to the cast condition | |
| DE3433827A1 (de) | Regeleinrichtung in einer walzenpresse | |
| DE3907117A1 (de) | Verfahren und vorrichtung zum aneinanderfuegen von bahnen | |
| DE19511801A1 (de) | Verfahren und Vorrichtung zur Dickenvorsteuerung beim Folienwalzen | |
| DE1527610B2 (de) | Vorrichtung zum Walzen von etwa gleiche Querschnittshöhe und -breite aufweisenden Knüppeln, Stangen u.a. Stabstahlerzeugnissen | |
| DE3401894A1 (de) | Verfahren zum herstellen von walzband mit hoher bandprofil- und bandplanheitsguete | |
| EP0116030B1 (de) | Verfahren zum Überwachen einer Bogenstranggiessanlage | |
| EP0920938B1 (de) | Verfahren und Vorrichtung zur Erzeugung von dünnen Brammen auf einer Stranggiessanlage | |
| DE19745547A1 (de) | Verfahren und Anlage zum Stranggießen von Dünnbrammen | |
| EP1519887B1 (de) | Verfahren zur ermittlung eines verlaufs für den spannungsabfall einer bahn und verfahren zur einstellung der spannung | |
| EP0279173A2 (de) | Vorrichtung zur Messung kleiner Dickenprofiländerungen in bandförmigem Material, insbesondere fotografischem Basispapier |
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: 20030109 |
|
| AK | Designated contracting states |
Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
| AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| 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 CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
| 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: 20040526 Ref country code: CY 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: 20040526 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: 20040526 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: 20040526 Ref country code: IE 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: 20040526 Ref country code: FR 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: 20040526 |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
| REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: GERMAN |
|
| REF | Corresponds to: |
Ref document number: 50102426 Country of ref document: DE Date of ref document: 20040701 Kind code of ref document: P |
|
| 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: 20040725 |
|
| 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: 20040731 Ref country code: MC Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040731 |
|
| 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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20040826 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: 20040826 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: 20040826 |
|
| 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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20040906 |
|
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20040901 |
|
| LTIE | Lt: invalidation of european patent or patent extension |
Effective date: 20040526 |
|
| NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
| REG | Reference to a national code |
Ref country code: IE Ref legal event code: FD4D |
|
| BERE | Be: lapsed |
Owner name: SMS DEMAG A.G. Effective date: 20040731 |
|
| 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: 20050301 |
|
| EN | Fr: translation not filed | ||
| 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: 20050731 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050731 |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
| BERE | Be: lapsed |
Owner name: *SMS DEMAG A.G. Effective date: 20040731 |
|
| 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: 20041026 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R082 Ref document number: 50102426 Country of ref document: DE Representative=s name: HEMMERICH & KOLLEGEN, DE Ref country code: DE Ref legal event code: R081 Ref document number: 50102426 Country of ref document: DE Owner name: SMS GROUP GMBH, DE Free format text: FORMER OWNER: SMS SIEMAG AKTIENGESELLSCHAFT, 40237 DUESSELDORF, DE |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20200727 Year of fee payment: 20 Ref country code: DE Payment date: 20200721 Year of fee payment: 20 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 20200722 Year of fee payment: 20 Ref country code: IT Payment date: 20200724 Year of fee payment: 20 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R071 Ref document number: 50102426 Country of ref document: DE |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: PE20 Expiry date: 20210724 |
|
| REG | Reference to a national code |
Ref country code: AT Ref legal event code: MK07 Ref document number: 267654 Country of ref document: AT Kind code of ref document: T Effective date: 20210725 |
|
| 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 EXPIRATION OF PROTECTION Effective date: 20210724 |