Patent
   D341431
Priority
Jan 30 1992
Filed
Jan 30 1992
Issued
Nov 16 1993
Expiry
Nov 16 2007
Assg.orig
Entity
unknown
18
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
12116842, May 19 2020 BOOTHE, DAVID Auxiliary step platform for ladder
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,
ER7506,
ER8056,
ER8098,
ER9653,
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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