Building units and construction elements – Stair – ladder – scaffold – or similar support – Element or attachment
Design Patent
2007-10-02
2007-10-02
Clark, Doris (Department: 2914)
Building units and construction elements
Stair, ladder, scaffold, or similar support
Element or attachment
Design Patent
active
29253196
CLAIM:
The ornamental design for ladder accessory, as shown and described.
REFERENCES:
patent: 4964601 (1990-10-01), Dishman
patent: 4979710 (1990-12-01), Baldwin
patent: D331289 (1992-11-01), Davis
patent: 5342008 (1994-08-01), Kay
patent: 5511753 (1996-04-01), Lage
patent: 5673885 (1997-10-01), Pham
patent: 5813530 (1998-09-01), Kornblatt
patent: 6502664 (2003-01-01), Peaker, Sr.
Clark Doris
Galasso Raymond M.
Galasso & Associates LP
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