USD840055S1 - Step ladder - Google Patents

Step ladder Download PDF

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Publication number
USD840055S1
USD840055S1 US29/633,324 US201829633324F USD840055S US D840055 S1 USD840055 S1 US D840055S1 US 201829633324 F US201829633324 F US 201829633324F US D840055 S USD840055 S US D840055S
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United States
Prior art keywords
step ladder
view
ladder
elevation view
ornamental design
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
US29/633,324
Inventor
Jeff D. Skubic
Dennis D. Simpson
Benjamin P. Williams
Yongxue Lu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tricam Industries Inc
Original Assignee
Tricam Industries Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US14/617,441 external-priority patent/US10648234B2/en
Application filed by Tricam Industries Inc filed Critical Tricam Industries Inc
Priority to US29/633,324 priority Critical patent/USD840055S1/en
Assigned to TRICAM INDUSTRIES, INC. reassignment TRICAM INDUSTRIES, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SIMPSON, DENNIS, SKUBIC, JEFF, WILLIAMS, BEN, LU, YONGXUE
Application granted granted Critical
Publication of USD840055S1 publication Critical patent/USD840055S1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Description

FIG. 1 is a front perspective view of a step ladder.
FIG. 2 is a front elevation view thereof.
FIG. 3 is a rear elevation view thereof.
FIG. 4 is a right side elevation view thereof.
FIG. 5 is a left side elevation view thereof.
FIG. 6 is a top plan view thereof.
FIG. 7 is a bottom plan view thereof; and,
FIG. 8 is a rear perspective view thereof.
The dashed broken lines in the drawings depict portions of the step ladder that form no part of the claimed design.

Claims (1)

    CLAIM
  1. We claim the ornamental design for step ladder, as shown and described.
US29/633,324 2015-02-09 2018-01-12 Step ladder Active USD840055S1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US29/633,324 USD840055S1 (en) 2015-02-09 2018-01-12 Step ladder

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14/617,441 US10648234B2 (en) 2014-03-10 2015-02-09 Step ladder
US29/633,324 USD840055S1 (en) 2015-02-09 2018-01-12 Step ladder

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US14/617,441 Continuation US10648234B2 (en) 2014-03-10 2015-02-09 Step ladder

Publications (1)

Publication Number Publication Date
USD840055S1 true USD840055S1 (en) 2019-02-05

Family

ID=65207381

Family Applications (1)

Application Number Title Priority Date Filing Date
US29/633,324 Active USD840055S1 (en) 2015-02-09 2018-01-12 Step ladder

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US (1) USD840055S1 (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD884923S1 (en) * 2018-09-25 2020-05-19 Lock N Climb, Llc Engine maintenance ladder
USD898944S1 (en) * 2018-08-24 2020-10-13 Lock N Climb, Llc Engine maintenance ladder
US10822874B2 (en) 2018-08-24 2020-11-03 Lock N Climb, Llc Engine maintenance ladder
USD920541S1 (en) * 2018-07-20 2021-05-25 Little Giant Ladder Systems, Llc Ladder
USD921224S1 (en) * 2018-07-20 2021-06-01 Little Giant Ladder Systems, Llc Ladder
USD935054S1 (en) * 2018-10-19 2021-11-02 Little Giant Ladder Systems, Llc Ladder
USD943772S1 (en) * 2018-10-19 2022-02-15 Little Giant Ladder Systems, Llc Flip-up ladder
USD944417S1 (en) 2019-02-08 2022-02-22 Little Giant Ladder Systems, Llc Top cap for a ladder
USD946176S1 (en) 2019-02-08 2022-03-15 Little Giant Ladder Systems, Llc Ladder accessory
US11441356B2 (en) 2018-06-08 2022-09-13 Wing Enterprises, Incorporated Ladders, top cap for ladders and trays for ladders
US11440480B2 (en) * 2021-01-07 2022-09-13 John E. Dickman Ladder hanging bracket
USD966556S1 (en) 2019-12-13 2022-10-11 Murphy Ladder Llc Ladder
USD1005526S1 (en) * 2023-05-26 2023-11-21 Fuling Ma Ladder

Citations (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2470053A (en) * 1946-07-08 1949-05-10 Raymond R Salisbury Convertible stepladder
US2650014A (en) 1951-01-05 1953-08-25 Harrison Henry Stepladder
US2899008A (en) * 1955-09-21 1959-08-11 White Metal Rolling & Stamping Multi-way ladder
US3446310A (en) 1967-06-22 1969-05-27 Conrad L Alfie Scaffoladder,decorator model
US4270463A (en) 1979-07-18 1981-06-02 Dura Plastics Of New York, Inc. Display stand with easily adjusted shelves
FR2777593A1 (en) 1998-04-20 1999-10-22 Pierre Vandelanoite Household or professional stepladder
US6012548A (en) 1999-02-25 2000-01-11 R.M.M., Inc. Ladder frame
US20020017431A1 (en) 2000-08-11 2002-02-14 Gibson William R. Foldable step stool with leg lock and handle
US6347687B1 (en) 1999-09-16 2002-02-19 Pt Indal Aluminum Industry Tbk. Compact collapsible step ladder
US6390238B1 (en) 1999-08-13 2002-05-21 Cosco Management, Inc. Foldable step stool with leg lock and handle
FR2816984A1 (en) 2000-11-23 2002-05-24 Francis Mugnier Large width platform stepladder comprises two steps and platform with two independently movable rear feet connected by arm to self-locking system sliding on railing side parts
US6427805B1 (en) 1999-01-08 2002-08-06 Cosco Management, Inc. Folding step stool
US6550579B2 (en) 2000-08-11 2003-04-22 Cosco Management, Inc. Step stool
US20040000449A1 (en) 2002-06-27 2004-01-01 Meeker Paul K. Step stool with movable handrail
US20040007424A1 (en) 2002-03-15 2004-01-15 Tricam Industries, Inc. Stepladder with pivoting utility tray
US7108103B2 (en) 2003-05-22 2006-09-19 Cosco Management, Inc. Rigidified step ladder
US7204343B1 (en) 2003-06-11 2007-04-17 Chris Seaman Collapsible platform for maintenance tasks
USD548364S1 (en) * 2006-05-23 2007-08-07 Tricam Industries, Inc. Stepladder
US20070181369A1 (en) 2006-02-07 2007-08-09 Cosco Management, Inc. Foldable stepladder with step lock
USD554771S1 (en) 2006-06-12 2007-11-06 Tricam Industries, Inc. Stepladder
US20070284192A1 (en) 2006-06-07 2007-12-13 Cosco Management, Inc. Folding tray for foldable step stool
AU2007101150A4 (en) 2007-12-03 2008-01-10 Werner International Poc Gmbh Step ladder/scaffold platform assembly
WO2010084135A1 (en) 2009-01-20 2010-07-29 Declan Gallagher A ladder
US7861826B2 (en) 2006-08-30 2011-01-04 Cosco Management, Inc. Platform for a ladder
US20110024234A1 (en) 2009-07-30 2011-02-03 Chen-Hsiung Lin Ladder Chair
US20140102458A1 (en) 2011-01-18 2014-04-17 Tabitha Landow Tube securement device
US20140332316A1 (en) * 2013-05-09 2014-11-13 Werner Co Stepladder Having a Ladder Top with Conduit Holder Slot and Method
US20150090533A1 (en) * 2013-09-27 2015-04-02 Wing Enterprises, Incorporated Step ladders, components for step ladders and related methods
US8997931B2 (en) 2013-01-10 2015-04-07 Werner Co. Stepladder with latch stud and method
US20150159434A1 (en) 2013-12-05 2015-06-11 New-Tec Integration (Xiamen) Co., Ltd. Hinged connection element of a folding ladder
US20150308190A1 (en) 2014-03-10 2015-10-29 Tricam Industries, Inc. Step ladder
USD766462S1 (en) * 2014-09-04 2016-09-13 Wing Enterprises, Inc. Ladder
USD766461S1 (en) * 2014-09-04 2016-09-13 Wing Enterprises, Inc. Ladder
USD777350S1 (en) * 2014-09-04 2017-01-24 Wing Enterprises, Inc. Ladder

Patent Citations (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2470053A (en) * 1946-07-08 1949-05-10 Raymond R Salisbury Convertible stepladder
US2650014A (en) 1951-01-05 1953-08-25 Harrison Henry Stepladder
US2899008A (en) * 1955-09-21 1959-08-11 White Metal Rolling & Stamping Multi-way ladder
US3446310A (en) 1967-06-22 1969-05-27 Conrad L Alfie Scaffoladder,decorator model
US4270463A (en) 1979-07-18 1981-06-02 Dura Plastics Of New York, Inc. Display stand with easily adjusted shelves
FR2777593A1 (en) 1998-04-20 1999-10-22 Pierre Vandelanoite Household or professional stepladder
US6427805B1 (en) 1999-01-08 2002-08-06 Cosco Management, Inc. Folding step stool
US6012548A (en) 1999-02-25 2000-01-11 R.M.M., Inc. Ladder frame
US6390238B1 (en) 1999-08-13 2002-05-21 Cosco Management, Inc. Foldable step stool with leg lock and handle
US6347687B1 (en) 1999-09-16 2002-02-19 Pt Indal Aluminum Industry Tbk. Compact collapsible step ladder
US20020017431A1 (en) 2000-08-11 2002-02-14 Gibson William R. Foldable step stool with leg lock and handle
US6550579B2 (en) 2000-08-11 2003-04-22 Cosco Management, Inc. Step stool
FR2816984A1 (en) 2000-11-23 2002-05-24 Francis Mugnier Large width platform stepladder comprises two steps and platform with two independently movable rear feet connected by arm to self-locking system sliding on railing side parts
US20040007424A1 (en) 2002-03-15 2004-01-15 Tricam Industries, Inc. Stepladder with pivoting utility tray
US20040000449A1 (en) 2002-06-27 2004-01-01 Meeker Paul K. Step stool with movable handrail
US7108103B2 (en) 2003-05-22 2006-09-19 Cosco Management, Inc. Rigidified step ladder
US7204343B1 (en) 2003-06-11 2007-04-17 Chris Seaman Collapsible platform for maintenance tasks
US20070181369A1 (en) 2006-02-07 2007-08-09 Cosco Management, Inc. Foldable stepladder with step lock
USD548364S1 (en) * 2006-05-23 2007-08-07 Tricam Industries, Inc. Stepladder
US20070284192A1 (en) 2006-06-07 2007-12-13 Cosco Management, Inc. Folding tray for foldable step stool
USD554771S1 (en) 2006-06-12 2007-11-06 Tricam Industries, Inc. Stepladder
US7861826B2 (en) 2006-08-30 2011-01-04 Cosco Management, Inc. Platform for a ladder
AU2007101150A4 (en) 2007-12-03 2008-01-10 Werner International Poc Gmbh Step ladder/scaffold platform assembly
WO2010084135A1 (en) 2009-01-20 2010-07-29 Declan Gallagher A ladder
US20110024234A1 (en) 2009-07-30 2011-02-03 Chen-Hsiung Lin Ladder Chair
US20140102458A1 (en) 2011-01-18 2014-04-17 Tabitha Landow Tube securement device
US8997931B2 (en) 2013-01-10 2015-04-07 Werner Co. Stepladder with latch stud and method
US20140332316A1 (en) * 2013-05-09 2014-11-13 Werner Co Stepladder Having a Ladder Top with Conduit Holder Slot and Method
US20150090533A1 (en) * 2013-09-27 2015-04-02 Wing Enterprises, Incorporated Step ladders, components for step ladders and related methods
US20150159434A1 (en) 2013-12-05 2015-06-11 New-Tec Integration (Xiamen) Co., Ltd. Hinged connection element of a folding ladder
US20150308190A1 (en) 2014-03-10 2015-10-29 Tricam Industries, Inc. Step ladder
USD766462S1 (en) * 2014-09-04 2016-09-13 Wing Enterprises, Inc. Ladder
USD766461S1 (en) * 2014-09-04 2016-09-13 Wing Enterprises, Inc. Ladder
USD777350S1 (en) * 2014-09-04 2017-01-24 Wing Enterprises, Inc. Ladder

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
Application and File History from U.S. Appl. No. 14/617,441, filed Feb. 9, 2015, inventors Skubic et al.
Cosco Signature Series 6 ft. Premium Aluminum Step Ladder, Home Depot, http://www.homedepot.com/p/Cosco-Signature-Series-6-ft-Premium-Aluminum-Step-Ladder-2061AABLD/203642157, accessed May 6, 2015.
Polder® 3-Step Ladder. Crate and Barrel, http://www.crateandbarrel.com/polder-3-step-ladder/s451498, accessed May 6, 2015.
Werner 4 ft. Fiberglass Platform Step Ladder with 375 lb. Load Capacity Type IAA Duty Rating. Home Depot, http://www.homedepot.com/p/Werner-4-ft-Fiberglass-Platform-Step-Ladder-with-375-lb-Load-Capacity-Type-IAA-Duty-Rating-P7404/203134335, accessed May 6, 2015.

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11441356B2 (en) 2018-06-08 2022-09-13 Wing Enterprises, Incorporated Ladders, top cap for ladders and trays for ladders
USD920541S1 (en) * 2018-07-20 2021-05-25 Little Giant Ladder Systems, Llc Ladder
USD921224S1 (en) * 2018-07-20 2021-06-01 Little Giant Ladder Systems, Llc Ladder
USD970045S1 (en) 2018-07-20 2022-11-15 Little Giant Ladder Systems, Llc Ladder
USD970046S1 (en) 2018-07-20 2022-11-15 Little Giant Ladder Systems, Llc Ladder
USD898944S1 (en) * 2018-08-24 2020-10-13 Lock N Climb, Llc Engine maintenance ladder
US10822874B2 (en) 2018-08-24 2020-11-03 Lock N Climb, Llc Engine maintenance ladder
USD884923S1 (en) * 2018-09-25 2020-05-19 Lock N Climb, Llc Engine maintenance ladder
USD966557S1 (en) 2018-10-19 2022-10-11 Little Giant Ladder Systems, Llc Ladder
USD969347S1 (en) 2018-10-19 2022-11-08 Little Giant Ladder Systems, Llc Flip-up ladder
USD943772S1 (en) * 2018-10-19 2022-02-15 Little Giant Ladder Systems, Llc Flip-up ladder
USD935054S1 (en) * 2018-10-19 2021-11-02 Little Giant Ladder Systems, Llc Ladder
USD999404S1 (en) 2018-10-19 2023-09-19 Little Giant Ladder Systems, Llc Ladder
USD946176S1 (en) 2019-02-08 2022-03-15 Little Giant Ladder Systems, Llc Ladder accessory
USD944417S1 (en) 2019-02-08 2022-02-22 Little Giant Ladder Systems, Llc Top cap for a ladder
USD966556S1 (en) 2019-12-13 2022-10-11 Murphy Ladder Llc Ladder
US11440480B2 (en) * 2021-01-07 2022-09-13 John E. Dickman Ladder hanging bracket
USD1005526S1 (en) * 2023-05-26 2023-11-21 Fuling Ma Ladder

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