(19)

(11)

EP 4 125 490 A1

(12)

(43) Date of publication: 08.02.2023 Bulletin 2023/06 (21) Application number: 21781330.2 (22) Date of filing: 25.02.2021

(51) International Patent Classification (IPC):  A45B 25/22(1968.09) (52) Cooperative Patent Classification (CPC): A45B 25/22 (86) International application number: PCT/US2021/019663 (87) International publication number: WO 2021/202018 (07.10.2021 Gazette 2021/40)

(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: 02.04.2020 US 202016838388 (71) Applicant: Shedrain Corporation Portland, OR 97238 (US)	(72) Inventor: HAYTHORNTHWAITE, David Xiamen Fujian Province, Fujian 361005 (CN) (74) Representative: Studio Torta S.p.A.  Via Viotti, 9 10121 Torino 10121 Torino (IT)