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Systems, devices, and methods of a self-activation use odometer for a skin care brush

  • US 10,736,413 B2
  • Filed: 07/31/2017
  • Issued: 08/11/2020
  • Est. Priority Date: 07/31/2017
  • Status: Active Grant
First Claim
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1. A skin brush head for use with a motorized personal appliance, comprising:

  • a body having an inner surface, an outer surface, and a window portion through which light transmits between the inner surface and the outer surface;

    a treatment applicator coupled to the outer surface of the body, wherein the treatment applicator is configured to apply treatment to a skin portion; and

    a replacement indicator associated with the skin brush head, the replacement indicator configured to provide an indication through the window portion for recommending replacement of the skin brush head to a user after a duration of time the skin brush head is in use, wherein the duration of time commences upon initial attachment of the skin brush head to the motorized personal appliance;

    wherein the replacement indicator is configured to indicate when the duration of time has elapsed by spreading a dye.

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