(19)
(11) EP 1 611 267 A1

(12)

(43) Date of publication:
04.01.2006 Bulletin 2006/01

(21) Application number: 04724313.4

(22) Date of filing: 30.03.2004
(51) International Patent Classification (IPC): 
C23F 11/16(1968.09)
(86) International application number:
PCT/GB2004/001373
(87) International publication number:
WO 2004/087996 (14.10.2004 Gazette 2004/42)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
Designated Extension States:
AL LT LV MK

(30) Priority: 31.03.2003 GB 0307290

(71) Applicant: Middlesex Silver Co. Limited
Enfield, Middlesex EN3 4SA (GB)

(72) Inventors:
  • JOHNS, Peter, Gamon
    Watford Hertfordshire WD17 3BQ (GB)
  • HARRISON, Clare, Elizabeth
    Cheshunt, Hertfordshire EN7 5AQ (GB)

(74) Representative: Lucas, Phillip Brian et al
Lucas & Co. 135 Westhall Road
GB-Warlingham, Surrey CR6 9HJ
GB-Warlingham, Surrey CR6 9HJ (GB)

   


(54) ENHANCING SILVER TARNISH-RESISTANCE