(19)

(11)

EP 4 294 994 A1

(12)

(43) Date of publication: 27.12.2023 Bulletin 2023/52 (21) Application number: 22755633.9 (22) Date of filing: 03.02.2022

(51) International Patent Classification (IPC):  E04C 1/39(2006.01) E04C 2/52(2006.01) E04B 2/18(2006.01) (52) Cooperative Patent Classification (CPC): E04B 2/08; E04B 2/18; E04C 1/397 (86) International application number: PCT/HU2022/050009 (87) International publication number: WO 2022/175699 (25.08.2022 Gazette 2022/34)

(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: 18.02.2021 HU 2100056 (71) Applicant: TE-PLAN Korlátolt Felelösségü Társaság 5000 Szolnok (HU)	(72) Inventor: VIDRA, Tamás 5000 Szolnok (HU) (74) Representative: Köteles, Zoltan  SBGK Patent and Law Offices Andrassy ut 113 1062 Budapest 1062 Budapest (HU)