Ladder standoff device

Fire escape – ladder – or scaffold – Safety device for ground-supported ladder

Reexamination Certificate

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Details

C182S214000

Reexamination Certificate

active

11724799

ABSTRACT:
A ladder standoff device comprising in combination an elongated member, at least one standoff arm, at least one support arm, a second adjustable elongated member, at least one ladder rail brace, at least one ladder rail fastener, at least one torsion spring, and at least one non-slip pad, said ladder standoff device being useful for supporting a ladder against a flat side wall or against a slanting roof structure.

REFERENCES:
patent: 972001 (1910-10-01), Holdorf
patent: 2196640 (1940-04-01), Meier
patent: 2327317 (1943-08-01), Randall
patent: 3288249 (1966-11-01), Gibson
patent: 3459277 (1969-08-01), Frederick
patent: 4359138 (1982-11-01), Kummerlin et al.
patent: 4369860 (1983-01-01), Beane
patent: 5261507 (1993-11-01), Williams et al.
patent: 5931259 (1999-08-01), Hoey
patent: 6394229 (2002-05-01), Hastreiter
patent: 6722469 (2004-04-01), Weger, Jr.
patent: 6851518 (2005-02-01), Walker
patent: 232206 (1987-08-01), None

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