Adjustable ladder

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Description

FIG. 1 is a front view of an adjustable ladder;

FIG. 2 is a rear view thereof;

FIG. 3 is a left view thereof;

FIG. 4 is a right view thereof;

FIG. 5 is a bottom side view thereof;

FIG. 6 is a top side view thereof;

FIG. 7 is a extend view thereof;

FIG. 8 is an enlarged view of FIG. 5; and,

FIG. 9 is an enlarged view of FIG. 6.

The broken lines are for the purposes of illustrating portions of the adjustable ladder and form no part of the claimed design.

Claims

The ornamental design for an adjustable ladder, as shown and described.

Referenced Cited
U.S. Patent Documents
4119177 October 10, 1978 Andersson
5738186 April 14, 1998 Jones
8011475 September 6, 2011 Wang
8104580 January 31, 2012 Eriksson
8387753 March 5, 2013 Kieffer
D777351 January 24, 2017 Holmberg
D799063 October 3, 2017 Yin
10161184 December 25, 2018 Lampe
20060283664 December 21, 2006 Yao
20070209875 September 13, 2007 Chen
20090050407 February 26, 2009 Eriksson
Patent History
Patent number: D904641
Type: Grant
Filed: Apr 21, 2018
Date of Patent: Dec 8, 2020
Inventor: Ding He (Shenzhen)
Primary Examiner: Gino Colan
Application Number: 29/644,921
Classifications
Current U.S. Class: Ladder (D25/64)