Magnetic eraser, writing system and display device

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11335487
APP PUB NO 20210313105A1
SERIAL NO

17288657

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A magnetic eraser can be used for erasing markings drawn on a magnetic sheet. The magnetic eraser includes a housing with a magnet placed in the housing. The magnetic eraser also includes a first magnetic body placed between a first surface of the housing and the magnet. The first surface of the housing can provide a first erasing surface.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
ZERO LAB CO LTD1-23-17 EBISU SHIBUYA-KU TOKYO 1500013

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Koga, Ritsuo Tokyo, JP 11 104

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Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Nov 17, 2025
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