Brush holder marking system and associated maintenance

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United States of America Patent

PATENT NO 9874492
SERIAL NO

14755844

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Importance

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Abstract

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A marking system for knowing precisely at which location on an electrical device a used brush and associated brush holder assembly were positioned to evaluate whether abnormal brush wear, abnormal operation or other anomaly is occurring and performing maintenance and/or replacement of components as needed.

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Patent Owner(s)

Patent OwnerAddress
CUTSFORTH INCMINNEAPOLIS MN

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cutsforth, Robert S Bellingham, US 69 933

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Maintenance Fees

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7.5 Year Payment $3600.00 $1800.00 $900.00 Jul 23, 2025
11.5 Year Payment $7400.00 $3700.00 $1850.00 Jul 23, 2029
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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