(19)

(11)

EP 4 453 341 A1

(12)

(43) Date of publication: 30.10.2024 Bulletin 2024/44 (21) Application number: 22908892.7 (22) Date of filing: 21.12.2022

(51) International Patent Classification (IPC):  E04B 2/02(2006.01) E04C 1/39(2006.01) E04B 2/46(2006.01) (52) Cooperative Patent Classification (CPC): E04C 1/39; E04B 2/42; E04C 2002/004; E04B 2002/0208 (86) International application number: PCT/AU2022/051554 (87) International publication number: WO 2023/115130 (29.06.2023 Gazette 2023/26)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: KH MA MD TN (30) Priority: 21.12.2021 AU 2021904181 (71) Applicant: Fastbrick IP Pty Ltd Perth, Western Australia 6057 (AU)	(72) Inventor: PIVAC, Mark Joseph Lesmurdie, Western Australia 6076 (AU) (74) Representative: FRKelly  Waterways House Grand Canal Quay Dublin D02 PD39 Dublin D02 PD39 (IE)