Fire escape – ladder – or scaffold – Having transpositioning base and erecting means – Ladder pivotably mounted on transpositioning base
Reexamination Certificate
2008-10-28
2009-11-10
Mitchell, Katherine W (Department: 3634)
Fire escape, ladder, or scaffold
Having transpositioning base and erecting means
Ladder pivotably mounted on transpositioning base
C182S068100, C182S127000, C182S017000
Reexamination Certificate
active
07614480
ABSTRACT:
The present invention relates generally to ladders and more specifically to auxiliary stands or supports for utilization with ladders where it is not possible or desirable to rest the top of the ladder legs against a vertical surface or roof edge guttering for support and the required work height is beyond the reach of a conventional step ladder.
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Cahn Daniel
Lachenmaier Frank D
Mitchell Katherine W
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