Building units and construction elements – Stair – ladder – scaffold – or similar support – Element or attachment
Design Patent
2006-05-02
2006-05-02
Clark, Doris (Department: 2914)
Building units and construction elements
Stair, ladder, scaffold, or similar support
Element or attachment
Design Patent
active
D0520147
CLAIM:
The ornamental design for top for step ladder, as shown and described.
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patent: 6237718 (2001-05-01), Schwarzel
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patent: 6443260 (2002-09-01), Katz et al.
Jones Chad H.
Kuelbs Gustav P.
Clark Doris
Walton James E.
World Factory, Inc.
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