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The ornamental design for a step for a portable riser assembly, as shown. |
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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.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Jan 28 1992 | KNIEFEL, JOHN H | WENGER CORPORATION A CORPORATION OF MN | MORTGAGE SEE DOCUMENT FOR DETAILS | 006000 | /0318 | |
| Jan 28 1992 | RESHANOV, EUGENE N | WENGER CORPORATION A CORPORATION OF MN | MORTGAGE SEE DOCUMENT FOR DETAILS | 006000 | /0318 | |
| Jan 28 1992 | GASTON, JOHANNES N | WENGER CORPORATION A CORPORATION OF MN | MORTGAGE SEE DOCUMENT FOR DETAILS | 006000 | /0318 | |
| Jan 30 1992 | Wenger Corporation | (assignment on the face of the patent) | / |
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