February 23, 2010
April 7, 2009
Lamb; Lee A.
Attorney Or Agent:
Crossley Patent LawCrossley; Mark A
Field Of Search:
U.S Patent Documents:
Foreign Patent Documents:
CLAIM 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.
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