Patent
   D610709
Priority
Apr 07 2009
Filed
Apr 07 2009
Issued
Feb 23 2010
Expiry
Feb 23 2024
Assg.orig
Entity
unknown
5
7
n/a
The ornamental design for a ladder extension, as shown and described.

FIG. 1 is a front elevation view of a ladder extension showing my new design;

FIG. 2 is a rear elevation view thereof;

FIG. 3 is a right side elevation view thereof, the opposite side being a mirror image of the shown;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is an isometric view thereof.

The broken lines shown in FIG. 6 are for illustrative purposes only and form no part of the claimed design.

Lamb, Lee A.

Patent Priority Assignee Title
9038776, Apr 03 2009 Lock N Climb, LLC Collapsible safe ladder
D721825, Sep 09 2013 Lock N Climb, LLC Ladder stabilizer
D733931, Sep 09 2013 Lock N Climb, LLC Ladder towing apparatus
D734500, Sep 09 2013 Lock N Climb, LLC Ladder towing apparatus
D745191, May 27 2014 Lock N Climb, LLC Ladder
Patent Priority Assignee Title
3866714,
4284171, Feb 12 1979 Convertible ladder
4926964, Sep 05 1989 Step/extension ladder
5454446, Mar 24 1994 Freestanding extension ladder
6698550, Apr 04 2002 Adjustable step ladder
6702066, Jun 11 2001 Ladder leveling device
D364930, Dec 23 1994 Ladder extension
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