Convertible ladder
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 3, 2005
Grant Date -
Aug 7, 2003
app pub date -
May 16, 2002
filing date -
Feb 7, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A convertible ladder including a first ladder portion, a second ladder portion and a static hinge mechanism. The first ladder portion has a first locking mechanism proximate a first end thereof. The second ladder portion has a second locking mechanism proximate a first end thereof. The static hinge mechanism is attached to the first ladder portion with the first locking mechanism. The static hinge mechanism is attached to the second ladder portion with the second locking mechanism. The static hinge mechanism maintains the first ladder portion in a stationary relation with respect to the second ladder portion.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
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