ClassID:

130871

E04F11/064 - CPC Classification

Classification description:

Stairways, ramps, or like structures ; Balustrades; Handrails; Stairways; Layouts thereof; Movable stairways, e.g. of loft ladders which may or may not be concealable or extensible collapsible, e.g. folding, telescopic folding with stringers overlapping when folded

Recent Application in this class:
#1
20260125907
2026-05-07

ATTIC STAIRS

#2
20260009230
2026-01-08

FOLDING STAIRCASE

#3
20250188748
2025-06-12

ROTATABLE STAIR-DECK SYSTEM

#4
20250101806
2025-03-27

CEILING LADDER, DEEP STEP AND METHOD

#5
20250084643
2025-03-13

Attic stair apparatus

#6
20240410179
2024-12-12

FIRE RESISTANT ATTIC STAIRS

#7
20240368893
2024-11-07

Insulated Cover System

#8
20240191509
2024-06-13

Attic stair apparatus

#9
20240110442
2024-04-04

Ceiling ladder, deep step and method

#10
20230392383
2023-12-07

Folding Stair with Tread Overhang

#11
20230349162
2023-11-02

FOLDING STAIRCASE

#12
20230304338
2023-09-28

HINGE

#13
20230304294
2023-09-28

ATTIC STAIRS WITH A SUPPORT BEAM

#14
20220120137
2022-04-21

Ceiling Ladder, Deep Step and Method

#15
20220064958
2022-03-03

Folding staircase

#16
20210388669
2021-12-16

Escape door assembly for storm shelter

#17
20210207380
2021-07-08

Simple, attractive, functional method to hide a pull down mechanism; for example, a hidden attic staircase for access to a storage area

#18
20200284039
2020-09-10

FOLDING STAIRCASE

#19
20200149347
2020-05-14

Ceiling ladder, deep step and method

#20
20190186151
2019-06-20

Attic Ladder and Kit

#21
20190063073
2019-02-28

Ceiling ladder, deep step and method

#22
20180305934
2018-10-25

Folding staircase

#23
20180148936
2018-05-31

Folding staircase

#24
20170350134
2017-12-07

Folding staircase

#25
20160333592
2016-11-17

CEILING LADDER

#26
20160159613
2016-06-09

Folding attic stairway transport system

#27
20150122580
2015-05-07

Automatic foldable ladder

#28
20140196388
2014-07-17

Lightweight wooden stairs

#29
20130256057
2013-10-03

Folding stairs, especially light wooden stairs

#30
20120199417
2012-08-09

Remote controlled overhead ladder system

#31
20120005972
2012-01-12

FOLDING LOFT STAIR ASSEMBLY

#32
20100252364
2010-10-07

Collapsible safe ladder

#33
20100192487
2010-08-05

Pivotal stairway systems and method

#34
20100089695
2010-04-15

Attic ladder strut attachment

#35
20090288351
2009-11-26

FOLDING LOFT STAIR ASSEMBLY

#36
20090255757
2009-10-15

FOLDING ATTIC STAIR ASSEMBLY

#37
20090241434
2009-10-01

Insulated cover for attic openings

#38
20080264724
2008-10-30

ATTIC LADDER

#39
20080179137
2008-07-31

Pre-compressed gas strut, use thereof for installing attic ladder and attic ladder having pre-compressed gas strut

#40
20080060874
2008-03-13

Automatic ladder for attic access

#41
20070181364
2007-08-09

Automatic ladder for attic access

#42
20070140827
2007-06-21

Power operated stair

#43
20070095607
2007-05-03

Platform lift apparatus with integrated ladder for accessing attic storage space

#44
20070034450
2007-02-15

Sectional overhead ladder with a fold assist feature

#45
20060277848
2006-12-14

Telescoping stairway for accessing attic storage space

#46
20060090409
2006-05-04

Universal hinged treads for folding attic stairs

#47
20060076187
2006-04-13

Ladder handle

#48
20060032706
2006-02-16

Platform lift apparatus with integrated ladder for accessing attic storage space

#49
20050204644
2005-09-22

Insulator construction for pull down stairs

#50
20050067223
2005-03-31

Platform lift apparatus with integrated ladder for accessing attic storage space

#51
20050029044
2005-02-10

Stowable ladder configured for installation in an opening

#52
20050029043
2005-02-10

Stowable ladder configured for installation in an opening

#53
20050029042
2005-02-10

Positioning system for folding ladder and method of installation of folding ladder using positioning system

#54
20050028320
2005-02-10

Locking hinge for folding ladder

#55
15368840
2018-09-04

Retractable stairs and cord assembly

#56
14731976
2017-01-10

Retractable stairs and cord assembly