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EP 4 147 002 A1

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(43) Date of publication: 15.03.2023 Bulletin 2023/11 (21) Application number: 21799858.2 (22) Date of filing: 05.05.2021

(51) International Patent Classification (IPC):  F41B 7/08(2006.01) F41B 11/73(2013.01) F41B 11/89(2013.01) F41B 11/50(2013.01) F41A 9/70(2006.01) A63H 33/18(2006.01) (52) Cooperative Patent Classification (CPC): F41B 11/73; F41B 11/89; F41B 11/55 (86) International application number: PCT/SG2021/050248 (87) International publication number: WO 2021/225524 (11.11.2021 Gazette 2021/45)

(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: 05.05.2020 US 202063020086 P 11.11.2020 US 202063112213 P (71) Applicants: Easebon Services Limited Hong Kong (HK) Francis, See Chong Chia Kowloon, Hong Kong (HK)

(72) Inventor: FRANCIS, See Chong Chia Hong Kong (HK) (74) Representative: Nordic Patent Service A/S  Bredgade 30 1260 Copenhagen K 1260 Copenhagen K (DK)