(19)

(11)

EP 3 843 581 A1

(12)

(43) Date of publication: 07.07.2021 Bulletin 2021/27 (21) Application number: 19779226.0 (22) Date of filing: 28.08.2019

(51) International Patent Classification (IPC):  A44B 19/26(2006.01) (86) International application number: PCT/US2019/048476 (87) International publication number: WO 2020/047039 (05.03.2020 Gazette 2020/10)

(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: 31.08.2018 US 201816119508 (71) Applicant: Shah Technologies LLC Palm Beach Gardens, FL 33410 (US)	(72) Inventor: SHAH, Nirav, Ashok Mumbai 400 049 (IN) (74) Representative: HGF  1 City Walk Leeds LS11 9DX Leeds LS11 9DX (GB)