(19)

(11)

EP 4 022 143 A1

(12)

(43) Date of publication: 06.07.2022 Bulletin 2022/27 (21) Application number: 20859418.4 (22) Date of filing: 30.08.2020

(51) International Patent Classification (IPC):  E04C 1/41(2006.01) E04B 2/02(2006.01) E04C 1/40(2006.01) (52) Cooperative Patent Classification (CPC): E04C 1/41; E04C 1/40 (86) International application number: PCT/PL2020/050059 (87) International publication number: WO 2021/040550 (04.03.2021 Gazette 2021/09)

(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: 30.08.2019 PL 43099719 (71) Applicant: Trzaskoma, Malgorzata 01-493 Warszawa (PL)	(72) Inventor: Trzaskoma, Malgorzata 01-493 Warszawa (PL) (74) Representative: Lampart, Jerzy  Kancelaria Patentowa Ul. Wyzwolenia 1b 42-624 Ossy 42-624 Ossy (PL)