ClassID:

130874

E04F11/09 - CPC Classification

Classification description:

Stairways, ramps, or like structures ; Balustrades; Handrails; Stairways; Layouts thereof Tread-and-riser units

Recent Application in this class:
#1
20240191507
2024-06-13

STAIR SYSTEM

#2
20230313535
2023-10-05

STAIR STRINGER ASSEMBLY, SYSTEM, AND METHOD

#3
20220259865
2022-08-18

SYSTEM AND METHOD FOR AUTOMATING CONSTRUCTION AND INSTALLATION OF SURFACES IN CONSTRUCTION

#4
20220259864
2022-08-18

Fully-assembled staircase system and assembly method

#5
20220251848
2022-08-11

ADJUSTABLE PET STAIR RAMP

#6
20210396017
2021-12-23

Modular staircase systems

#7
20200390240
2020-12-17

Snap lock system, method and use for connecting construction elements

#8
20200024849
2020-01-23

System and method for automating construction and installation of surfaces in construction

#9
20190249441
2019-08-15

STAIR TREAD PAN DESIGN WITH BOLT-IN PRE-CAST CONCRETE/OTHER MATERIAL TREAD CAPABILITY

#10
20190032340
2019-01-31

Wedge tread stair box system

#11
20180347204
2018-12-06

STEP FOR MODULAR STAIRCASE

#12
20180274241
2018-09-27

COMPOSITE PRE-CAST CONCRETE STAIR TREADS AND LANDINGS

#13
20180100311
2018-04-12

Curved pathway

#14
20170058533
2017-03-02

Curved staircase

#15
20160222673
2016-08-04

Stair case

#16
20160060875
2016-03-03

Stairway tread support device and system

#17
20150082716
2015-03-26

PRECISION BUILT STAIRCASE

#18
20140325920
2014-11-06

ELEMENT FOR PERFORMING SPORTS FACILITY STANDS AND SPORTS FAILITY STAND PERFORMED BY MEANS OF SAID ELEMENT

#19
20140290159
2014-10-02

Refaced Staircase

#20
20140260004
2014-09-18

Pool liner retainer

#21
20130212960
2013-08-22

MODULES FOR CONVERTING A STAIRWAY

#22
20120210671
2012-08-23

Method of refacing a staircase

#23
20110271612
2011-11-10

Stairway tread and riser assembly

#24
20060156649
2006-07-20

Modular staircase construction

#25
16679190
2020-08-11

Stackable step component with adjustable tread incline

#26
14641102
2016-05-24

Step-block precast stair

#27
14026495
2015-01-20

Concrete step