TREA

Step ladder

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Information

  • Patent Grant
  • D840055
  • Patent Number
    D840,055
  • Date Filed
    Friday, January 12, 2018
    6 years ago
  • Date Issued
    Tuesday, February 5, 2019
    5 years ago
  • US Classifications
    Field of Search
    • US
    • D25 62- 65
    • D25 68
    • D25 69
    • 182 121000
    • 182 023000
    • 182 172000
    • 182 125000
    • 182 116000
    • 182 122000
    • 182 102000
    • 182 096000
    • 182 028000
    • 182 027000
    • 182 046000
    • 182 020000
    • 182 022000
    • 182 026000
    • 182 228200
    • 182 222000
    • 182 033000
    • 182 129000
    • 182 200000
    • 182 156000
    • 182 127000
    • 182 120000
    • 182 228300
    • 182 104000
    • 182 168000
    • 182 206000
    • 182 013000
    • 182 033300
    • 182 201000
    • 182 106000
    • 182 024000
    • 182 025000
    • 182 029000
    • 182 117000
    • 182 216000
    • 182 124000
    • 182 163000
    • 182 161000
    • 182 165000
    • 182 180100
    • 182 170000
    • CPC
    • E06C1/39
    • E06C1/32
    • E06C1/38
  • International Classifications
    • 2504
    • Term of Grant
      15Years
Information
Abstract
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
  • We claim the ornamental design for step ladder, as shown and described.
US Referenced Citations (30)
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2650014 Harrison Aug 1953 A
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3446310 Alfie May 1969 A
4270463 Korzon Jun 1981 A
6012548 Kim Jan 2000 A
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6390238 Gibson et al. May 2002 B1
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7204343 Seaman Apr 2007 B1
D548364 Skubic Aug 2007 S
D554771 Skubic et al. Nov 2007 S
7861826 Meyers et al. Jan 2011 B2
8997931 Parker et al. Apr 2015 B2
D766461 Moss Sep 2016 S
D766462 Moss Sep 2016 S
D777350 Moss Jan 2017 S
20020017431 Gibson et al. Feb 2002 A1
20040000449 Meeker Jan 2004 A1
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Foreign Referenced Citations (4)
Number Date Country
2007101150 Jan 2008 AU
2777593 Oct 1999 FR
2816984 May 2002 FR
WO 2010084135 Jul 2010 WO
Non-Patent Literature Citations (4)
Entry
Polder® 3-Step Ladder. Crate and Barrel, http://www.crateandbarrel.com/polder-3-step-ladder/s451498, accessed May 6, 2015.
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.
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.
Application and File History from U.S. Appl. No. 14/617,441, filed Feb. 9, 2015, inventors Skubic et al.
Continuations (1)
Number Date Country
Parent 14617441 Feb 2015 US
Child 29633324 US