(19)

(11)

EP 4 139 534 A1

(12)

(43) Date of publication: 01.03.2023 Bulletin 2023/09 (21) Application number: 21793022.1 (22) Date of filing: 22.04.2021

(51) International Patent Classification (IPC):  E04C 5/16(2006.01) E04G 21/32(2006.01) (52) Cooperative Patent Classification (CPC): E04C 5/161; E04G 21/3252 (86) International application number: PCT/SE2021/050368 (87) International publication number: WO 2021/215990 (28.10.2021 Gazette 2021/43)

(84) Designated Contracting States: 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 Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 24.04.2020 SE 2050471 (71) Applicant: Eurospacers Ab 411 18 Göteborg (SE)	(72) Inventor: ANDERSSON, Stefan 443 61 Stenkullen (SE) (74) Representative: Zacco Sweden AB  P.O. Box 5581 Löjtnantsgatan 21 114 85 Stockholm 114 85 Stockholm (SE)