Patents-Review.com
ClassID:

130865 ⎘

E04F11/032 - CPC Classification

Classification description:

Stairways, ramps, or like structures ; Balustrades; Handrails; Stairways; Layouts thereof characterised by the supporting structure Spiral stairways supported by a central column

Recent Application in this class:
#1
20230399851
2023-12-14

SPIRAL STAIRCASE

 #2
20230392383
2023-12-07

Folding Stair with Tread Overhang

 #3
20230033898
2023-02-02

Guard assemblies

 #4
20220349201
2022-11-03

Vertical flood escape structure

 #5
20220332544
2022-10-20

Elevating apparatus based on hetero-oriented, non-isometric, dual-spiral drive structure

 #6
20210238860
2021-08-05

INVISIBLE STAIRCASE

 #7
20210131111
2021-05-06

Freestanding modular spiral staircase

 #8
20210131110
2021-05-06

Freestanding Modular Spiral Staircase

 #9
20200399918
2020-12-24

Lifeguard observation station

 #10
20200032520
2020-01-30

STAIRCASE PRODUCED BY 3D PRINTING OF A CEMENTITIOUS MATERIAL

 #11
20190360212
2019-11-28

Tread mounting system for spiral staircase

 #12
20190003186
2019-01-03

Spacer for prefabricated spiral staircase and prefabricated spiral staircase using same

 #13
20170342719
2017-11-30

PREFABRICATED SPIRAL STAIRCASE

 #14
20170241142
2017-08-24

Kit of parts for modular staircase

 #15
20160331135
2016-11-17

Modular shelving and step assembly

 #16
20160319551
2016-11-03

Staircase element and method for building a staircase

 #17
20160208495
2016-07-21

Staircase Element and Method for Building a Staircase

 #18
20110302851
2011-12-15

Earthquake-Safe Compact Elevator System With Optional Staircase

 #19
20110258946
2011-10-27

SPIRAL STAIRCASE

 #20
20110192099
2011-08-11

Modular spiral staircase assembly

 #21
20100107523
2010-05-06

Bent pole composite stairs

 #22
20090094907
2009-04-16

Step for modular staircases and relative staircase

 #23
20080236066
2008-10-02

Segmented spiral staircase and kit for its construction

 #24
20070000191
2007-01-04

Spiral staircase kit

 #25
20050284044
2005-12-29

Collapsible Spiral Stair

 #26
16396687
2022-10-11

Actuatable assemblies

 #27
15987668
2019-08-13

Tread mounting system for spiral staircase

 #28
15130638
2017-10-31

Methods and systems of preparing and installing custom-made spiral staircases