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Patent
D824541
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Priority
May 02 2017
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Filed
May 02 2017
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Issued
Jul 31 2018
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Expiry
Jul 31 2033
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Assg.orig
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Entity
unknown
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2
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15
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n/a
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I claim the ornamental design for a step ladder extension, as shown and described.
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FIG. 1 is a side view of the step ladder extension.
FIG. 2 is a rear view of the claimed design.
FIG. 3 is a front view of the claimed design.
FIG. 4 is a top view of the claimed design.
FIG. 5 is a bottom view of the claimed design.
FIG. 6 is a front top perspective view of the claimed design; and,
FIG. 7 is a front bottom perspective view of the claimed design.
Villeneuve, Pierre
Patent |
Priority |
Assignee |
Title |
1820315, |
|
|
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2282133, |
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2553322, |
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3294197, |
|
|
|
4618030, |
Apr 11 1983 |
|
Ladder platform |
4800988, |
Apr 14 1988 |
|
Adjustable platform for a rung ladder |
5052515, |
Jul 20 1990 |
|
Ladder step support |
5975240, |
Jul 20 1998 |
HARNEY, JOHN |
Platform for ladders |
6966406, |
Feb 26 2003 |
|
Step platform attachable to a ladder |
20160084002, |
|
|
|
D248777, |
Jun 01 1976 |
Little Giant Industries, Inc. |
Ladder platform |
D334812, |
Apr 04 1990 |
|
Ladder platform |
D388883, |
Aug 26 1994 |
|
Ladder platform |
D523156, |
Jan 28 2005 |
|
Ladder platform |
D576292, |
May 24 2007 |
|
Ladder platform |
Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
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Maintenance Fee Events |
n/a
Date |
Maintenance Schedule |
n/a