Fire escape – ladder – or scaffold – Plural platforms – common support – Stepped
Reexamination Certificate
2005-07-25
2010-02-09
Chin-Shue, Alvin C (Department: 3634)
Fire escape, ladder, or scaffold
Plural platforms, common support
Stepped
C182S115000, C182S123000, C182S127000, C280S163000, C280S164200
Reexamination Certificate
active
07658266
ABSTRACT:
An embodiment of the present invention relates to a staircase device adapted to fit a bed of a truck, or other similar vehicle. The staircase provides a mechanism for facilitating the loading and unloading of items onto and off a bed of a truck. An embodiment of the present invention is directed to a vehicle staircase device comprising a first lower platform having a first length and a first width, the first lower platform having a hitch connector adapted to connect to a vehicle; a second platform having a second length and a second width, wherein the first lower platform and the second platform are substantially parallel; and a staircase structure connecting the first lower platform and the second platform.
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Chin-Shue Alvin C
Hunton & Williams LLP
Norfolk Southern Corporation
Quinn Colleen M
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