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You can use Global Patent Index (GPI) to carry out detailed searches in the EPO's worldwide bibliographic (DOCDB), legal event (INPADOC) and full-text data sets, and download or visualise the search results for statistical analysis.

Current content: 159 679 824 patent documents

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164 112 new documents added

576 445 documents amended

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EP 0472988 A3 19920429 - LINING FOR UNDERGROUND MINE GALLERIES

Title (en)

LINING FOR UNDERGROUND MINE GALLERIES

Publication

EP 0472988 A3 19920429 (DE)

Application

EP 91113452 A 19910810

Priority

DE 4027167 A 19900828

Abstract (en)

[origin: EP0472988A2] According to the invention, underground mine lining of steel plate and construction material is constructed in at least two shells, the two shells being connected to one another by wires or wire mats. <IMAGE>

IPC 1-7

E21D 11/10; E21D 11/15

IPC 8 full level

E21D 11/10 (2006.01)

CPC (source: EP)

E21D 11/10 (2013.01)

Citation (search report)

[X] DE 3236569 A1 19840405 - RUHRKOHLE AG [DE]

Designated contracting state (EPC)

AT CH DE FR GB IT LI NL SE

DOCDB simple family (publication)

EP 0472988 A2 19920304; EP 0472988 A3 19920429

DOCDB simple family (application)

EP 91113452 A 19910810