(19)

(11)

EP 4 225 999 A1

(12)

(43) Date of publication: 16.08.2023 Bulletin 2023/33 (21) Application number: 21798435.0 (22) Date of filing: 21.09.2021

(51) International Patent Classification (IPC):  E04C 2/52(2006.01) E04B 1/14(2006.01) E04B 1/12(2006.01) (52) Cooperative Patent Classification (CPC): E04C 2/52; E04B 1/12; E04B 1/14 (86) International application number: PCT/IB2021/058574 (87) International publication number: WO 2022/074489 (14.04.2022 Gazette 2022/15)

(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: 06.10.2020 US 202063087894 P 21.01.2021 US 202163139831 P (71) Applicant: EL KHOURY, Charles Joseph Amchit, Jbeil 0000 (LB)	(72) Inventor: EL KHOURY, Charles Joseph Amchit, Jbeil 0000 (LB) (74) Representative: Paustian & Partner Patentanwälte mbB  Oberanger 32 80331 München 80331 München (DE)