Fire escape – ladder – or scaffold – Safety device for ground-supported ladder
Reexamination Certificate
2008-05-27
2008-05-27
Chin-Shue, Alvin C (Department: 3634)
Fire escape, ladder, or scaffold
Safety device for ground-supported ladder
C182S214000
Reexamination Certificate
active
07377360
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
Misiak Kristen
Misiak Steven
Chin-Shue Alvin C
McKellar Robert L.
McKellar IP Law, PLLC
LandOfFree
Ladder standoff device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ladder standoff device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ladder standoff device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2782483