Fire escape – ladder – or scaffold – Horizontal traversing - actuation – control – or response – With handle or steering means
Reexamination Certificate
2007-05-10
2010-11-30
Mitchell, Katherine W (Department: 3634)
Fire escape, ladder, or scaffold
Horizontal traversing - actuation, control, or response
With handle or steering means
C182S015000, C182S017000
Reexamination Certificate
active
07841447
ABSTRACT:
A modular ladder comprises a base having a back end and a front end. A vertical support is attachable to the back end of the base. The ladder also includes a stair section assembly comprising a plurality of steps. The stair section assembly has a front end and a back end. The front end of the stair section assembly is attachable to the front end of the base. The back end of the stair section assembly is attachable to the vertical support. The stair section assembly comprises a separate top step, whereby the top step is capable of being attached to the stair section and whereby the attachable nature of separate top step facilitates storing the ladder in a compact container which is smaller than the stair section and top step when placed in an assembled condition. A method of storing the ladder in a compact container is also disclosed.
REFERENCES:
patent: 1820315 (1931-08-01), Miller
patent: 2444096 (1948-06-01), Faust
patent: 3020972 (1962-02-01), Hockett
patent: 3059722 (1962-10-01), Rouse
patent: 3115214 (1963-12-01), Roberts
patent: 3130814 (1964-04-01), Del Aquila
patent: 3490558 (1970-01-01), Foley
patent: 3637046 (1972-01-01), Emmons
patent: D248290 (1978-06-01), Guerette
patent: 4440264 (1984-04-01), Knoke et al.
patent: 4457398 (1984-07-01), Loix
patent: 5056620 (1991-10-01), Zumwalt et al.
patent: 5460241 (1995-10-01), LaBelle
patent: 5762163 (1998-06-01), Kain
patent: 6443260 (2002-09-01), Katz et al.
patent: 6450290 (2002-09-01), Spak
patent: 6637549 (2003-10-01), Lopacki
patent: 6786300 (2004-09-01), Bonifacini
patent: 6951265 (2005-10-01), Frame et al.
patent: 7182176 (2007-02-01), Gibson et al.
patent: 2003/0209385 (2003-11-01), Kuehl et al.
patent: 2005/0029048 (2005-02-01), Frame et al.
patent: 2005/0051940 (2005-03-01), Bensman
International Searching Authority, International Search Report and Written Opinion, Apr. 15, 2008.
Ballymore Company, Inc.
Bradford Candace L.
Mitchell Katherine W
Rudoler & DeRosa LLC
LandOfFree
Ladder with removable step and method of storing the ladder... 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 with removable step and method of storing the ladder..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ladder with removable step and method of storing the ladder... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4235364