(19)

(11)

EP 1 374 108 A2

(12)

(88) Date of publication A3: 02.10.2003 (43) Date of publication: 02.01.2004 Bulletin 2004/01 (21) Application number: 01906609.1 (22) Date of filing: 19.01.2001

(51) International Patent Classification (IPC)7: G06F 17/60 (86) International application number: PCT/US2001/001967 (87) International publication number: WO 2002/023427 (21.03.2002 Gazette 2002/12)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR (30) Priority: 12.09.2000 US 660366 (71) Applicant: 3M Innovative Properties Company St. Paul, MN 55133-3427 (US)	(72) Inventors: MAHMOODI, Abolghassem, B. Saint Paul, MN 55133-3427 (US) AASTUEN, David, J., W. Saint Paul, MN 55133-3427 (US) RAYKOWKI, Michael, J. Saint Paul, MN 55133-3427 (US) FLETCHER, Douglas, D. Saint Paul, MN 55133-3427 (US) SABONGI, Gebran, J. Saint Paul, MN 55133-3427 (US) (74) Representative: VOSSIUS & PARTNER  Siebertstrasse 4 81675 München 81675 München (DE)