Patent
   D341431
Priority
Jan 30 1992
Filed
Jan 30 1992
Issued
Nov 16 1993
Expiry
Nov 16 2007
Assg.orig
Entity
unknown
15
5
n/a
The ornamental design for a step for a portable riser assembly, as shown.

FIG. 1 is a top, front, and left end perspective view of a step for a portable riser assembly showing our new design;

FIG. 2 is a bottom, rear, and right end perspective view;

FIG. 3 is a right end elevational view;

FIG. 4 is a left end elevational view;

FIG. 5 is a rear elevational view;

FIG. 6 is a bottom plan view;

FIG. 7 is a front elevational view; and,

FIG. 8 is a top plan view.

Gaston, Johannes N., Kniefel, John H., Reshanov, Eugene N.

Patent Priority Assignee Title
7546705, Feb 26 2003 NUDO PRODUCTS, INC Portable riser apparatus having a lifting and locking assembly
7814708, Feb 26 2003 NUDO PRODUCTS, INC Portable riser apparatus having a lifting and locking assembly
9580911, Oct 07 2015 TL FAB, LP Stair tread and improved method of building a stairway
D519430, Sep 15 2003 Removable cover for recreational vehicle step
D611617, Feb 12 2008 RH Products International AS Scaffolding equipment
D611623, May 12 2009 Surface ornamentation for a ground decking panel
D611624, May 12 2009 Surface for a ground decking panel
D611625, May 12 2009 Surface for a ground decking panel
D611626, May 12 2009 Surface for a ground decking panel
D611627, Jun 01 2009 Surface for a ground decking panel
D733932, Sep 13 2013 Concrete step
ER7151,
ER7453,
ER8056,
ER8098,
Patent Priority Assignee Title
1964660,
1985143,
2697931,
3765509,
3851431,
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Jan 28 1992KNIEFEL, JOHN H WENGER CORPORATION A CORPORATION OF MNMORTGAGE SEE DOCUMENT FOR DETAILS 0060000318 pdf
Jan 28 1992RESHANOV, EUGENE N WENGER CORPORATION A CORPORATION OF MNMORTGAGE SEE DOCUMENT FOR DETAILS 0060000318 pdf
Jan 28 1992GASTON, JOHANNES N WENGER CORPORATION A CORPORATION OF MNMORTGAGE SEE DOCUMENT FOR DETAILS 0060000318 pdf
Jan 30 1992Wenger Corporation(assignment on the face of the patent)
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