Stepladders
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 12, 1980
Issued Date -
N/A
app pub date -
Mar 6, 1978
filing date -
Mar 9, 1977
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Stepladders made of extruded aluminum channels include special forms of front section bracing and brackets for a bucket rack that enables the ladder to be fabricated with a minimum of fasteners and parts while providing improved strength, rigidity and safety properties.
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Cited Art Landscape
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