ClassID:

130873

E04F11/068 - 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 telescopic

Recent Application in this class:
#1
20250084643
2025-03-13

Attic stair apparatus

#2
20240191509
2024-06-13

Attic stair apparatus

#3
20220185189
2022-06-16

STAIR ASSEMBLY

#4
20220063960
2022-03-03

Control Systems and Methods to Provide Sensor-Based Control

#5
20210189633
2021-06-24

Laundry pedestal having a drawer

#6
20210087821
2021-03-25

Telescopic staircase system and uses thereof

#7
20180320444
2018-11-08

Extendable access device

#8
20180128049
2018-05-10

Tubular Access Ladder and Method

#9
20160194880
2016-07-07

Auto-rotating aisle rail systems and methods

#10
20160108629
2016-04-21

Safety platform

#11
20150211234
2015-07-30

Adjustable staircase and height-adjustable platform with adjustable staircase

#12
20150144428
2015-05-28

Telescopic loft ladder

#13
20140190766
2014-07-10

Tubular access ladder and method

#14
20130239496
2013-09-19

Stair system

#15
20110240405
2011-10-06

Tubular access ladder and method

#16
20110239556
2011-10-06

Collapsible staircase

#17
20110100754
2011-05-05

Access ladder and method

#18
20100252363
2010-10-07

Access ladder with plungers

#19
20080264724
2008-10-30

ATTIC LADDER

#20
20080023269
2008-01-31

Tubular access ladder and method

#21
20070084670
2007-04-19

Access ladder with plungers

#22
20060124398
2006-06-15

Access ladder and method

#23
19073717
2026-01-13

Adaptive supporting structure of stairway for accessing space above or below an elevated structure

#24
18635429
2024-12-24

Motorized system on stairway for accessing space above or below an elevated structure

#25
15077616
2017-01-10

Telescoping step assist system and method