(19)

(11)

EP 4 347 426 A1

(12)

(43) Date of publication: 10.04.2024 Bulletin 2024/15 (21) Application number: 21943292.9 (22) Date of filing: 23.06.2021

(51) International Patent Classification (IPC):  B65D 13/00(2006.01) B65D 3/10(2006.01) B65D 3/28(2006.01) B65D 6/00(2006.01) B65D 3/04(2006.01) B65D 3/26(2006.01) B65D 5/04(2006.01) (52) Cooperative Patent Classification (CPC): B65D 5/5028 (86) International application number: PCT/US2021/038660 (87) International publication number: WO 2022/250713 (01.12.2022 Gazette 2022/48)

(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: 25.05.2021 US 202163192724 P (71) Applicants: Citadel Casing Ltd 1110 Tortola (VG) Rumsam, Douglas Lantau, Hong Kong (CN) GB  Lesné, Timothée Lantau, Hong Kong (HK) FR

(72) Inventors: RUMSAM, Douglas Hong Kong (CN) LESNÉ, Timothée Hong Kong (CN) (74) Representative: Boult Wade Tennant LLP  Salisbury Square House 8 Salisbury Square London EC4Y 8AP London EC4Y 8AP (GB)