Systems, devices, and methods of a self-activation use odometer for a skin care brush
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United States of America Patent
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Aug 11, 2020
Grant Date -
Jan 31, 2019
app pub date -
Jul 31, 2017
filing date -
Jul 31, 2017
priority date (Note) -
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Abstract
A workpiece, such as a brush head, having a replacement indicator is provided, which is suitable for use with a personal care appliance. In use, the replacement indicator can provide an indication to the user recommending that the brush head be replaced after a duration has elapsed. The brush head includes a window to view the progress of the duration for recommended replacement and an indication when the duration has elapsed. In some embodiments, the duration is commenced when the brush head is initially installed on the personal care appliance.
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