Payload transportation device

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11904461
APP PUB NO 20230191589A1
SERIAL NO

17043631

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Disclosed is a payload transportation device for transporting a payload, which has a low height and in which driving wheels are configured to come into constant contact with a ground surface even when the ground surface is uneven. The payload transportation device includes a loading plate above which a payload is loaded, a lift-driving portion configured to generate a driving force to vertically lift the loading plate, a first assembly configured to support a bottom of one side of the loading plate and in which some components included in the lift-driving portion are provided, a second assembly configured to support a bottom of the other side of the loading plate and in which other components included in the lift-driving portion are provided, hinge portions configured to connect the first assembly to the second assembly in a hinge structure, at least a pair of driving wheels coupled to both sides of a bottom of any one of the first assembly and the second assembly, and a driving unit configured to rotate the driving wheels.

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First Claim

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Family

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Patent Owner(s)

  • MOTION DEVICE INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lee, Jong Chan Anyang-si, KR 131 215

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Maintenance Fees

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3.5 Year Payment $1600.00 $800.00 $400.00 Aug 20, 2027
7.5 Year Payment $3600.00 $1800.00 $900.00 Aug 20, 2031
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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