Global Patent Index - EP 2578768 A3

EP 2578768 A3 2017-05-24 - Foldable stairs especially of 4 segments

Title (en)

Foldable stairs especially of 4 segments

Title (de)

Zusammenklappbare Treppe insbesondere aus 4 Segmenten

Title (fr)

Escalier repliable notamment en 4 segments

Publication

EP 2578768 A3 (EN)

Application

EP 12006941 A

Priority

PL 39656211 A

Abstract (en)

[origin: EP2578768A2] The stairs have a safety device ( 3 ) for protection against uncontrolled detachment of at least two last segments from the first segment ( 11 ) by rotation on the hinges ( 21 ), which mechanism is positioned near the top ends of the segments, beneficially overlaid on the extension hinge ( 23 ) that joins together segments 2 ( 12 ) and 3 ( 13 ). The safety device ( 3 ) is unlatched by the user lifting the bottom parts of segments 3 ( 13 ) and 4 ( 14 ). Also, the stairs have a bottom lock ( 6 ) installed on the hinge ( 22 ) that joins together segments 3 ( 13 ) and 4 ( 14 ).

IPC 8 full level (invention and additional information)

E04F 11/06 (2006.01)

CPC (invention and additional information)

E04F 11/064 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

EPO simple patent family

EP 2578768 A2 20130410; EP 2578768 A3 20170524; CN 103104075 A 20130515; PL 220639 B1 20151130; PL 396562 A1 20130415

INPADOC legal status


2017-05-24 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A3

- Designated State(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

2017-05-24 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Countries: BA ME

2017-05-24 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: E04F 11/06 20060101AFI20170418BHEP

2013-04-10 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20121010

2013-04-10 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

2013-04-10 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Countries: BA ME