Fire escape – ladder – or scaffold – Miscellaneous
Reexamination Certificate
2007-03-27
2007-03-27
Chin-Shue, Alvin (Department: 3634)
Fire escape, ladder, or scaffold
Miscellaneous
C482S075000
Reexamination Certificate
active
10353659
ABSTRACT:
A system and method for providing a telescopic stool for enabling a user stable and practical elevated working environment. The system enables the user to climb up or down and to move horizontally relative to a surface, increased and enhanced horizontal mobility, stability, portability, and height adjustability in an economical and lightweight telescopic stool.
REFERENCES:
patent: 1190421 (1916-07-01), Kalcy
patent: 3660920 (1972-05-01), Spina
patent: 4255822 (1981-03-01), Dixon
patent: 4415063 (1983-11-01), Hutchison
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