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Class Information
Number: D25/63
Name: Building units and construction elements > Stair, ladder, scaffold, or similar support > Stepped (15)
Description:










Sub-classes under this class:

Class Number Class Name Patents
D25/64 Ladder 108


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
D698463 Bunk bed stair Jan. 28, 2014
D695913 Staircase Dec. 17, 2013
D681850 Stair May. 7, 2013
D673691 Spiral staircase Jan. 1, 2013
D673299 Half-step staircase structure Dec. 25, 2012
D640015 Elevated bed and staircase for pets Jun. 14, 2011
D597684 Spa step assembly Aug. 4, 2009
D582568 Stair for water Dec. 9, 2008
D566298 Stackable precast concrete stairwell unit Apr. 8, 2008
D556345 Swimming pool staircase Nov. 27, 2007
D550374 Spa step assembly Sep. 4, 2007
D512518 Pool steps Dec. 6, 2005
D507662 Swimming pool steps Jul. 19, 2005
D485914 Pool step Jan. 27, 2004
D481467 Transparent staircase Oct. 28, 2003
D479338 Steps Sep. 2, 2003
D465032 Storage step Oct. 29, 2002
D449895 Combined swimming pool steps and ladder Oct. 30, 2001
D449117 Spa steps Oct. 9, 2001
D441461 Portable seating bleacher May. 1, 2001
D440984 External battery compartment with incorporated step for a tractor Apr. 24, 2001
D430679 Spa step Sep. 5, 2000
D428629 Three-way staircase therapeutic device Jul. 25, 2000
D399975 Staircase Oct. 20, 1998
D372985 Stairs for swimming pool Aug. 20, 1996
D358442 Panel with steps for playground structure May. 16, 1995
D355828 Single-step tool box Feb. 28, 1995
D354210 Two-step tool box Jan. 10, 1995
D351476 Step ladder Oct. 11, 1994
D341665 Hydraulic step Nov. 23, 1993
D304048 Toy ramp or the like Oct. 17, 1989
4584725 Retractable squat-facilitation toilet footrest Apr. 29, 1986
4580777 Exercise walkway Apr. 8, 1986
D282103 Spiral staircase Jan. 7, 1986
D276603 Helicopter step Dec. 4, 1984
D271524 Spiral stairway Nov. 22, 1983
D270567 Deck skirting for portable spa Sep. 13, 1983
D270286 Interchangeable entrance staircase for mobile homes and the like Aug. 23, 1983
D270004 Entrance staircase for mobile homes and the like Aug. 2, 1983
D267817 Tripod ladder Feb. 1, 1983
D265251 Swimming pool ladder Jun. 29, 1982
D265250 Stair for a swimming pool Jun. 29, 1982
D265131 Stair for a swimming pool Jun. 22, 1982
D262997 Portable multiple-toilet building Feb. 9, 1982
D256165 Stile Jul. 29, 1980
D253363 Playground structure Nov. 6, 1979
D251805 Spiral staircase May. 8, 1979
D245356 Combined play steps and slide Aug. 9, 1977
D245010 Spindle cover Jul. 12, 1977
D245011 Spindle cover Jul. 12, 1977

1 2










 
 
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