(19)

(11)

EP 3 894 654 A1

(12)

(43) Date of publication: 20.10.2021 Bulletin 2021/42 (21) Application number: 19894846.5 (22) Date of filing: 13.12.2019

(51) International Patent Classification (IPC):  E06C 1/383(2006.01) E06C 9/08(2006.01) E06C 1/387(2006.01) (52) Cooperative Patent Classification (CPC): E06C 1/387; E06C 1/383; E06C 1/18 (86) International application number: PCT/US2019/066162 (87) International publication number: WO 2020/123905 (18.06.2020 Gazette 2020/25)

(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: 13.12.2018 US 201816219834 22.06.2019 US 201962865185 P (71) Applicant: Murphy Ladder LLC West Haven, UT 84401 (US)	(72) Inventor: BARKER, Jeremy Morgan, UT 84050 (US) (74) Representative: Studio Torta S.p.A.  Via Viotti, 9 10121 Torino 10121 Torino (IT)