(19)
(11) EP 3 994 512 A1

(12)

(43) Date of publication:
11.05.2022 Bulletin 2022/19

(21) Application number: 19737090.1

(22) Date of filing: 05.07.2019
(51) International Patent Classification (IPC): 
G02B 6/44(2006.01)
(52) Cooperative Patent Classification (CPC):
G02B 6/4454; G02B 6/4442
(86) International application number:
PCT/EP2019/068155
(87) International publication number:
WO 2021/004612 (14.01.2021 Gazette 2021/02)
(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

(71) Applicant: British Telecommunications public limited company
London E1 8EE (GB)

(72) Inventors:
  • WATSON, Robert
    London EC4V 5BT (GB)
  • GOODMAN, Andrew
    London EC4V 5BT (GB)
  • TILYARD, Paul
    London EC4V 5BT (GB)
  • SIMMS, Luke
    London EC4V 5BT (GB)

(74) Representative: British Telecommunications public limited company Intellectual Property Department 
9th Floor One Braham Braham Street
London E1 8EE
London E1 8EE (GB)

   


(54) PROTECTIVE APPARATUS