ClassID:

130863

E04F11/0255 - CPC Classification

Classification description:

Stairways, ramps, or like structures ; Balustrades; Handrails; Stairways; Layouts thereof characterised by the supporting structure; Stairways having stringers having adjustable gradient

Recent Application in this class:
#1
20250207405
2025-06-26

REINFORCED ADJUSTABLE STAIR TRAY

#2
20250136412
2025-05-01

ELONGATED RAMP IN LIFTING SYSTEM FOR A STAIRWAY

#3
20250059770
2025-02-20

Modular Stairs

#4
20240287811
2024-08-29

Staircase with adjustable height risers

#5
20230313535
2023-10-05

STAIR STRINGER ASSEMBLY, SYSTEM, AND METHOD

#6
20210355686
2021-11-18

Stair assembly with rise adjustable step support brackets

#7
20200240149
2020-07-30

Self-leveling platform stairs

#8
20200181920
2020-06-11

Stair system

#9
20200109567
2020-04-09

Stair assembly with rise adjustable step support brackets

#10
20170342719
2017-11-30

PREFABRICATED SPIRAL STAIRCASE

#11
20160060875
2016-03-03

Stairway tread support device and system

#12
20150252568
2015-09-10

STRINGER MODULE FOR SELF-SUPPORTING STAIRS

#13
20150211234
2015-07-30

Adjustable staircase and height-adjustable platform with adjustable staircase

#14
20130000231
2013-01-03

Walkway assembly

#15
20110162303
2011-07-07

Adjustable Stair Stringer and Railing

#16
20110139544
2011-06-16

Ladder

#17
20100180525
2010-07-22

Removable stairway

#18
20090277105
2009-11-12

Stairway stringer and finished stairway skirt board

#19
20090205906
2009-08-20

Scaffold steps

#20
20090188183
2009-07-30

Stair system with adjustable width

#21
20090139161
2009-06-04

Log staircase and a method of producing components for a log staircase

#22
20080244997
2008-10-09

Method for forming a finished skirt/fascia board appearance

#23
20070199258
2007-08-30

Removable stairway

#24
20050160688
2005-07-28

Adjustable stair stringer and railing

#25
20050138871
2005-06-30

Method and apparatus for locating hole positions on an adjustable stair stringer

#26
20050097835
2005-05-12

Stairway

#27
20050011701
2005-01-20

Submerged water activity platform

#28
18506143
2024-05-28

Splicing step device

#29
14202478
2015-07-28

Adjustable staircase