Foldable ladder

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9580959
APP PUB NO 20160153231A1
SERIAL NO

14557944

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A foldable ladder has a first ladder portion and a second ladder portion hingedly attached to the first ladder portion by a pair of hinge mechanisms. Each hinge mechanism adapted to lock the first and second ladder portions such that the first ladder portion and the second ladder portion form an angle therebetween. The hinge mechanism has a shifting mechanism and a ladder angle selector coupled thereto to allow manual selection of the angle between the first and second ladder portions, and a locking pin to lock the first and second ladder portions at an angular position.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
CORE DISTRIBUTION INC113 WASHINGTON AVENUE NORTH MINNEAPOLIS MN 55401

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Caldwell, Allen A Shakopee, US 10 27
Kieffer, Mitchell I Minneapolis, US 19 65
Schlueter, Nathan L Bloomington, US 11 30

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