Step ladder

Details Step ladder Step ladder

2008-09-02

2008-09-02

Clark, Doris (Department: 2914)

Building units and construction elements

Stair, ladder, scaffold, or similar support

Stepped

Design Patent

active

29246770

CLAIM:
The ornamental design for a step ladder, as shown and described.

REFERENCES:
patent: 4204587 (1980-05-01), Larson
patent: 4371055 (1983-02-01), Ashton et al.
patent: 4560030 (1985-12-01), Mucelli
patent: 4834216 (1989-05-01), Wallick et al.
patent: D331289 (1992-11-01), Davis
patent: D388882 (1998-01-01), Kain
patent: 5722507 (1998-03-01), Kain
patent: 6000497 (1999-12-01), Kain et al.
patent: D433156 (2000-10-01), Gibson et al.
patent: D444574 (2001-07-01), Gibson et al.
patent: D449385 (2001-10-01), Rosko
patent: 6390238 (2002-05-01), Gibson et al.
patent: 6427805 (2002-08-01), Gibson et al.
patent: 6443261 (2002-09-01), Gibson et al.
patent: D466225 (2002-11-01), Rosko
patent: 6536557 (2003-03-01), Gibson et al.
patent: 6550579 (2003-04-01), Gibson et al.

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