Combination ladder and stair
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 28, 1994
Grant Date -
N/A
app pub date -
Sep 7, 1993
filing date -
Sep 7, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention disclosed comprises a combination ladder and stair for use by children which incorporates stair-like treads and risers with ladder-like rungs to achieve safe climbing activity. The combination ladder and stair is adapted to be used at a comparatively steep angle to the ground with the treads being maintained level. The rungs are placed adjacent to and level with each tread to afford additional security for the foot, and are spaced from the tread to allow the hand to grasp around the rung. In the preferred embodiment the ladder is incorporated into a split tube which serves as an entry to a children's play system.
First Claim
Family
International Classification(s)
Cited Art Landscape
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