Patent
   D390669
Priority
May 30 1997
Filed
May 30 1997
Issued
Feb 10 1998
Expiry
Feb 10 2012
Assg.orig
Entity
unknown
5
9
n/a
The ornamental design for a ladder step extender, as shown.

FIG. 1 is an isometric view of the ladder step extender of this design;

FIG. 2 is a top view of the ladder step extender;

FIG. 3 is a left side view of the ladder step extender of this design;

FIG. 4 is a right side view of the ladder step extender;

FIG. 5 is a front view of the ladder step extender;

FIG. 6 is a back view of the ladder step extender; and,

FIG. 7 is a bottom view of the ladder step extender of this invention.

Armstrong, Donald R., Bolf, Phillip F.

Patent Priority Assignee Title
10006248, May 27 2015 WILLOW STEP, INC Step adapter for rung ladders
9890589, May 27 2015 Willow Step, Inc. Step adapter for rung ladders
D409765, Apr 03 1998 Ladder step extender
D615725, Sep 08 2009 Ladder lift
D918427, Jun 22 2019 MORONEY, PETER Step attachment
Patent Priority Assignee Title
3294197,
3503468,
4437544, Feb 22 1983 The United States of America as represented by the Secretary of the Air Service platform for a ladder
4546853, Jul 02 1984 Portable folding platform apparatus used with a ladder and winch
4972923, Sep 01 1988 KRAUSE-WERK GMBH & CO KG Ladder platform
5056620, Apr 23 1990 Stepladder platform
5072808, Dec 28 1990 Ladder adaptable platform
5465809, Aug 08 1994 Safety platform attachment apparatus
188758,
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