Patent
   D621959
Priority
Aug 14 2006
Filed
Feb 23 2010
Issued
Aug 17 2010
Expiry
Aug 17 2024
Assg.orig
Entity
unknown
6
8
n/a
The ornamental design for a portable stair platform, as shown and described.

FIG. 1 is a perspective view of a portable stair platform showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

Klockler, Alan

Patent Priority Assignee Title
10030447, Apr 27 2016 STEVENS, PAUL; PYROS, PHIL Support platform assembly
10612304, Feb 08 2017 Hailo-Werk Rudolf Loh GmbH & Co. KG Apparatus for setting up a ladder or a step on a staircase
8479337, Dec 05 2012 Wheelchair bound person's riding lawnmower mounting apparatus
D731080, Mar 15 2013 WILLIAM FRICK & COMPANY Movable platform
D770642, Mar 24 2014 Step extender
ER2803,
Patent Priority Assignee Title
1057722,
352716,
4237661, Jun 21 1978 Support stand for use with an above ground pool
4753320, Apr 22 1987 Convertable step stool
5715910, Jul 20 1995 Stairway platform
5870788, Jun 25 1997 Portable ramp device
7162760, Jun 19 2003 Methods and apparatus for a step mounting system
D306487, Mar 21 1988 Tree stand
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