(19)
(11) EP 3 710 671 B8

(12) CORRECTED EUROPEAN PATENT SPECIFICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 B1)

(48) Corrigendum issued on:
05.10.2022 Bulletin 2022/40

(45) Mention of the grant of the patent:
31.08.2022 Bulletin 2022/35

(21) Application number: 18808088.1

(22) Date of filing: 16.11.2018
(51) International Patent Classification (IPC): 
E21B 33/12(2006.01)
E21B 36/00(2006.01)
 E21B 43/10(2006.01)
(52) Cooperative Patent Classification (CPC):
E21B 33/1208; E21B 36/003; E21B 43/103
(86) International application number:
PCT/GB2018/053333
(87) International publication number:
WO 2019/097252 (23.05.2019 Gazette 2019/21)

(54)

AN EXPANDABLE EUTECTIC ALLOY BASED DOWNHOLE TOOL AND METHODS OF DEPLOYING SUCH

EXPANDIERBARES BOHRLOCHWERKZEUG AUF DER GRUNDLAGE EINER EUTEKTISCHEN LEGIERUNG UND VERFAHREN ZU SEINEM EINSATZ

OUTIL AGRANDISSABLE EN PROFONDEUR DE FORAGE À BASE D'ALLIAGE EUTECTIQUE ET PROCÉDÉS DE DÉPLOIEMENT DE CELUI-CI

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

(30) Priority: 17.11.2017 GB 201719093

(43) Date of publication of application:
23.09.2020 Bulletin 2020/39

(60) Divisional application:
22175188.6 / 4067617

(73) Proprietor: BiSN Tec Ltd
Birchwood Warrington Cheshire WA3 6DE (GB)

(72) Inventor:
  • CARRAGHER, Paul
    Warrington Cheshire WA3 6DE (GB)

(74) Representative: Forresters IP LLP 
Skygarden Erika-Mann-Straße 11
80636 München
80636 München (DE)


(56) References cited: : 
WO-A1-02/099247
US-A- 3 208 530
US-A1- 2015 047 841
 WO-A1-2016/049424
US-A1- 2003 178 204
   
       
    Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).