Adjustable ladder

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Description

FIG. 1 is a perspective view of an adjustable ladder showing the new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a side view thereof, the opposite side being a mirror image;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a perspective view showing the design of FIG. 1 with the adjustable legs in an alternate position of use;

FIG. 8 is a perspective view showing the design of FIG. 1 with the adjustable legs in a second alternate position of use;

FIG. 9 is an exploded perspective view showing the design of FIG. 1 with the adjustable portion of the legs separated from the fixed legs, with the leg pins removed to show the construction order; and,

FIG. 10 is an enlarged view of the design of FIG. 1, taken from circle 10 shown in FIG. 9.

The dash-dash broken lines appearing in FIGS. 7 and 8 illustrate environmental structure of a floor and stairway, which form no part of the claimed design. The dash-dot broken lines appearing in FIGS. 9 and 10 illustrate the exploded distance between the elements, for adjustment to the ladder, which forms no part of the claimed design.

The dash-dash broken lines forming an oval in FIGS. 9 and 10 illustrate a boundary showing the enlarged portion in FIG. 10 and forms no part of the claimed design.

Claims

I claim the ornamental design for an adjustable ladder, as shown and described.

Referenced Cited
U.S. Patent Documents
5265698 November 30, 1993 Friedel, Jr.
5816364 October 6, 1998 Christy
7000731 February 21, 2006 Swiderski
7000732 February 21, 2006 Briggs, Jr.
D548364 August 7, 2007 Skubic
D766462 September 13, 2016 Moss
20060006024 January 12, 2006 Till
20080029339 February 7, 2008 Yewer
20100018801 January 28, 2010 Allred
20100116592 May 13, 2010 Clements
20130327593 December 12, 2013 Perkins
20160265277 September 15, 2016 Masters
Patent History
Patent number: D810320
Type: Grant
Filed: Jul 5, 2016
Date of Patent: Feb 13, 2018
Inventor: Paul Rose (Waco, TX)
Primary Examiner: Cynthia Ramirez
Assistant Examiner: Michael A Maharajh
Application Number: 29/570,093
Classifications
Current U.S. Class: Ladder (D25/64)