(19)

(11)

EP 4 305 259 A1

(12)

(43) Date of publication: 17.01.2024 Bulletin 2024/03 (21) Application number: 22714932.5 (22) Date of filing: 03.03.2022

(51) International Patent Classification (IPC):  E04F 21/16(2006.01) E04G 25/04(2006.01) E04F 21/18(2006.01) (52) Cooperative Patent Classification (CPC): E04F 21/16; E04F 21/1877; E04G 25/04 (86) International application number: PCT/LV2022/050003 (87) International publication number: WO 2022/191684 (15.09.2022 Gazette 2022/37)

(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: 09.03.2021 LV 210015 (71) Applicant: Valters, Artis 4126 Priekulu pag., Priekulu nov. (LV)	(72) Inventor: Valters, Artis 4126 Priekulu pag., Priekulu nov. (LV) (74) Representative: Kromanis, Artis  AAA Law Latvia, SIA Citadeles Street 12, 3rd floor 1010 Riga 1010 Riga (LV)