E04F11/104 - CPC Classification Index

ClassID:

130875 ⎘

E04F11/104 - CPC Classification

Classification description:

Stairways, ramps, or like structures ; Balustrades; Handrails; Stairways; Layouts thereof Treads

Sub-classes:

E04F11/1041 » {having means to adjust the height, the depth and/or the slope of the stair steps } 28
E04F11/1042 » {with an upper layer of fibres or chips, e.g. bonded with synthetic resins} 4
E04F11/1043 » {with an upper layer of organic plastics with or without reinforcements or filling materials} 11
E04F11/1045 » {composed of several layers, e.g. sandwich panels } 20
E04F11/108 » of wood {or with an upper layer of wood} 38
E04F11/112 » of metal {or with an upper layer of metal} 46
E04F11/116 » of stone, concrete or like material {or with an upper layer of stone or stone like material, e.g. ceramics, concrete; of glass or with an upper layer of glass} 20
E04F11/16 » Surfaces thereof; Protecting means for edges or corners thereof 31
E04F2011/1046 » {Miscellaneous features of treads not otherwise provided for} 9

Recent Application in this class:

20250215694

2025-07-03

FOLDABLE STAIR ASSEMBLY

20250198164

2025-06-19

SIMPLIFIED STAIRCASE

20250101806

2025-03-27

CEILING LADDER, DEEP STEP AND METHOD

20240110442

2024-04-04

Ceiling ladder, deep step and method

20230228095

2023-07-20

TEMPORARY STAIR TREADS

20220154461

2022-05-19

Modular deck apparatus

20220120137

2022-04-21

Ceiling Ladder, Deep Step and Method

20210277661

2021-09-09

Energy-efficient assistive stairs

20200332543

2020-10-22

Stair tread cover

#10

20200299958

2020-09-24

Modular deck apparatus

#11

20200149347

2020-05-14

Ceiling ladder, deep step and method

#12

20200149285

2020-05-14

Energy-efficient assistive stairs

#13

20190063073

2019-02-28

Ceiling ladder, deep step and method

#14

20180347216

2018-12-06

Stair tread cover

#15

20180347215

2018-12-06

Stair tread cover

#16

20160326747

2016-11-10

Tread for steel-pan stairways

#17

20160222673

2016-08-04

Stair case

#18

20160010338

2016-01-14

STAIR ELEMENT AND METHOD FOR CLADDING THEREOF

#19

20150272348

2015-10-01

Rack System and Bracket

#20

20140360112

2014-12-11

Stair nosing assembly

#21

20130152494

2013-06-20

Stair tread overlay and method

#22

20120204502

2012-08-16

Stair nosing assembly

#23

20120192515

2012-08-02

Synthetic deck panel

#24

20120180409

2012-07-19

Stair tread overlay and method

#25

20110179729

2011-07-28

Stair tread assembly and method

#26

20110146168

2011-06-23

Paper Laminated Stair Tread and Methods of Making and Using Same

#27

20110131902

2011-06-09

Stair tread overlay and method

#28

20100281796

2010-11-11

STRUCTURAL MEMBER AND A STEPPED STRUCTURE

#29

20090175030

2009-07-09

Modular stair unit

#30

20080229685

2008-09-25

Staircase protective step cover and or replacement step

#31

20070234653

2007-10-11

Support system for stair treads

#32

20060150540

2006-07-13

Structural step unit with run portion and rise portion

#33

20060010802

2006-01-19

Decorative panel system

#34

20050158503

2005-07-21

Outdoor adhesive mat with integral heating element

#35

20050158501

2005-07-21

Covering having an integral barrier for use on treated boards

#36

20050155700

2005-07-21

Method of applying a covering having an integral barrier for use on treated boards

#37

18141939

2026-02-10

Composite stair tread

#38

17187605

2023-02-14

High visibility tape

#39

15130638

2017-10-31

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