EP 0064140 B1 19850731 - SURFACING FOR OPEN-AIR AREAS
Title (en)
SURFACING FOR OPEN-AIR AREAS
Publication
Application
Priority
DE 3116231 A 19810423
Abstract (en)
[origin: US4444815A] The invention relates to a ground covering for open spaces, with which a water-permeable filter mat impervious to granular material is bonded to the underside of a water-permeable artificial grass so that a filling of granular material in the pile of the grass will not be swept away to the edges of the surface covered by the ground covering even in heavy rain since the water may drain immediately through the artificial grass and the filter mat to the underside of the ground covering.
IPC 1-7
IPC 8 full level
E01C 13/00 (2006.01); E01C 13/08 (2006.01)
CPC (source: EP US)
E01C 13/08 (2013.01 - EP US); Y10T 428/23979 (2015.04 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0064140 A2 19821110; EP 0064140 A3 19830420; EP 0064140 B1 19850731; AT E14600 T1 19850815; CA 1177501 A 19841106; DE 3116231 A1 19821111; DE 3264990 D1 19850905; JP S57197302 A 19821203; US 4444815 A 19840424
DOCDB simple family (application)
EP 82101711 A 19820305; AT 82101711 T 19820305; CA 401077 A 19820415; DE 3116231 A 19810423; DE 3264990 T 19820305; JP 6641382 A 19820422; US 50204583 A 19830607