(19)

(11)

EP 1 129 390 A1

(12)

(43) Date of publication: 05.09.2001 Bulletin 2001/36 (21) Application number: 98957486.8 (22) Date of filing: 12.11.1998

(51) International Patent Classification (IPC)7: G03F 7/11 (86) International application number: PCT/US9823/243 (87) International publication number: WO 0029/907 (25.05.2000 Gazette 2000/21)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (71) Applicant: Thompson, Andrew Michael Ridgeway, PA 15853 (US)	(72) Inventor: Thompson, Andrew Michael Ridgeway, PA 15853 (US) (74) Representative: Lipscombe, Martin John et al Keith W Nash & Co,Pearl Assurance House,90-92 Regent Street Cambridge CB2 1DP Cambridge CB2 1DP (GB)