Rail warning system and method

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11866078
APP PUB NO 20210323591A1
SERIAL NO

17248802

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Abstract

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A rail warning system using wireless portable transmitters/receivers. The rail warning system uses chirp spread spectrum modulation scheme, and alerts personnel in work zones on or near train tracks as well as optionally, on track equipment and train operators , of approaching trains or on track equipment. Portable wayside devices may also be positioned on the rail web, optionally magnetically, to alert work personnel, allowing for secure placement but also portability to other locations on the same track or adjacent tracks.

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Patent Owner(s)

Patent OwnerAddress
BANK OF AMERICA N A900 W TRADE STREET NC1-026-06-09 (MACLEGAL) CHARLOTTE NC 28255

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bartek, Peter M Ledgewood, US 40 144

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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 Jul 9, 2027
7.5 Year Payment $3600.00 $1800.00 $900.00 Jul 9, 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