Patent
   D300365
Priority
Apr 14 1986
Filed
Apr 14 1986
Issued
Mar 21 1989
Expiry
Mar 21 2003
Assg.orig
Entity
unknown
10
1
n/a
The ornamental design for a step ladder, as shown and described.

FIG. 1 is a front perspective view of the step ladder showing my new design, illustrating the step ladder in its erected position;

FIG. 2 is a right side elevational view of FIG. 1;

FIG. 3 is a right side elevational view of the step ladder in its collapsed or folded position;

FIG. 4 is a front elevational view of the front section of the step ladder;

FIG. 5 is a right side elevational view of FIG. 4, the opposite side being a mirror image thereof;

FIG. 6 is a rear elevational view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a top plan view thereof;

FIG. 9 is a rear elevational view of the rear section of the step ladder;

FIG. 10 is a right side elevational view of FIG. 10, the opposite side being a mirror image thereof;

FIG. 11 is a front elevational view thereof;

FIG. 12 is a top plan view thereof;

FIG. 13 is a bottom plan view thereof;

FIG. 14 is a front elevational view of the step ladder shown in FIG. 2;

FIG. 15 is a rear elevational view of the step ladder shown in FIG. 2;

FIG. 16 is a top plan view thereof; and

FIG. 17 is a bottom plan view thereof.

Schmitt, Thomas J., Wallick, Jr., Claude R.

Patent Priority Assignee Title
6347687, Sep 16 1999 PT INDAL ALUMINUM INDUSTRY TBK Compact collapsible step ladder
6422344, Sep 19 2000 Folding step ladder
D334309, Apr 04 1990 Shelving unit
D335711, May 30 1991 Mikron Industries Window component extrusion
D425209, Jul 15 1999 Folding step ladder
D467667, Oct 06 1999 PT INDAL ALUMINUM INDUSTRY TBK Portion of step ladder
D706455, Nov 28 2012 Ladder
D967460, Feb 09 2021 Formosa Saint Jose Corp. Multi function tire climber step
ER4284,
ER662,
Patent Priority Assignee Title
4023647, Dec 18 1975 Confer Plastics, Inc. Freestanding ladder structure
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Apr 14 1986Emerson Electric Co.(assignment on the face of the patent)
Jul 10 1986WALLICK, CLAUDE R JR EMERSON ELECTRIC CO , A CORP OF MISSOURIASSIGNMENT OF ASSIGNORS INTEREST 0045860847 pdf
Jul 14 1986SCHMITT, THOMAS J EMERSON ELECTRIC CO , A CORP OF MISSOURIASSIGNMENT OF ASSIGNORS INTEREST 0045860847 pdf
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