(19)

(11)

EP 0 020 564 A1

(12)

(43) Date of publication: 07.01.1981 Bulletin 1981/01 (21) Application number: 79901492.0 (22) Date of filing: 01.10.1979

(51) International Patent Classification (IPC):  B32B 5/ 24( . ) E01C 13/ 08( . ) (86) International application number: PCT/US1979/000823 (87) International publication number: WO 1980/000649 (17.04.1980 Gazette 1980/08)

(84) Designated Contracting States: AT CH DE FR GB LU NL SE (30) Priority: 29.09.1978 US 19780947036 (71) Applicant: MOD-SOD SPORTS SURFACES Metairie, LA 70005 (US)	(72) Inventor: HAAS Jr., Frederick T. Metairie, LA 70005 (US)