(19)

(11)

EP 3 980 981 A1

(12)

(43) Date of publication: 13.04.2022 Bulletin 2022/15 (21) Application number: 20750438.2 (22) Date of filing: 05.06.2020

(51) International Patent Classification (IPC):  G08B 15/00(2006.01) H04M 1/02(2006.01) G08B 25/01(2006.01) (52) Cooperative Patent Classification (CPC): G08B 15/00; G08B 25/016; H04M 1/72421; H04M 1/72412; H04M 1/72409 (86) International application number: PCT/US2020/036476 (87) International publication number: WO 2020/247855 (10.12.2020 Gazette 2020/50)

(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: 07.06.2019 US 201916435379 09.04.2020 US 202016844783 (71) Applicant: KATANA SAFETY, INC. Greenville SC 29601 (US)	(72) Inventor: BALDREE, Todd W. Greer, South Carolina 29650 (US) (74) Representative: Fish & Richardson P.C.  Highlight Business Towers Mies-van-der-Rohe-Straße 8 80807 München 80807 München (DE)