Building units and construction elements – Stair – ladder – scaffold – or similar support – Element or attachment
Design Patent
2011-01-11
2011-01-11
Clark, Doris (Department: 2914)
Building units and construction elements
Stair, ladder, scaffold, or similar support
Element or attachment
Design Patent
active
D0630769
CLAIM:
The ornamental design for a ladder bracket, as shown and described.
REFERENCES:
patent: 3964711 (1976-06-01), Lund
patent: 4880200 (1989-11-01), Champagne et al.
patent: D356166 (1995-03-01), Spiller
patent: 5816363 (1998-10-01), Searcy
patent: 5819873 (1998-10-01), Higgins
patent: 6009974 (2000-01-01), Jones
patent: 7093689 (2006-08-01), Poldmaa
patent: 2008/0202851 (2008-08-01), Schwenke et al.
Ladder Lock USA, ladderlockusa.com; retrieved May 5, 2010.
Clark Doris
Oppenheimer Wolff & Donnelly LLP
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