Ladder safety handrail

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 12037849
APP PUB NO 20220259921A1
SERIAL NO

17177175

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A set of detachable base ladder safety handrails comprising: a pair of tubular cross-section handrails, wherein said handrails are made of metal, preferably aluminum, wherein one handrail is situated approximately one to a few inches away from the distal edge of one of the two ladder side rails, wherein a second handrail is situated approximately one to a few inches away from the distal edge of the second ladder side rail, wherein said pair of handrails are on or substantially on the same plane which ladder side rails and rungs connecting said ladder side rails lie, wherein said pair of handrails are parallel to each other and said ladder side rails, wherein a plurality of removable clamps is attached to each of said ladder side rails, wherein each of the said handrails is coupled to said plurality of removable clamps by a plurality of clamp-to-handrail links, wherein each clamp-to-handrail link is securely bonded, welded, or fastened to said clamp on one end and nearest handrail on said link's opposite end, wherein said clamp-to-handrail links are made of a solid circular, tubular, or thin shell cross-section and are preferably made from aluminum, wherein at least two clamps are attached to each ladder side rail and at least one clamp is attached near each of the two ends of said ladder side rail, wherein the surface of said handrails have a durable and high grip topology, preferably knurled.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
MACKEY STEVEBOLTON

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Mackey, Steve Bolton, CA 1 0

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Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Jan 16, 2028
7.5 Year Payment $3600.00 $1800.00 $900.00 Jan 16, 2032
11.5 Year Payment $7400.00 $3700.00 $1850.00 Jan 16, 2036
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Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00