TOOTHBRUSH BRISTLE AND BRISTLE TUFT
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United States of America Patent
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Issued Date -
Nov 21, 2019
app pub date -
May 20, 2019
filing date -
May 20, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
A toothbrush comprises a handle; a head connected to the handle; and a plurality of bristles, respective ones of the plurality of bristles including a first end having a tapered first tip, a second end having a tapered second tip, and a substantially cylindrical shaft extending between the first end and the second end. Respective ones of the plurality of bristles are fastened to the head by a fastener at a fastening point along the shaft, the fastening point being located nearer to the second end than to the first end such that the first end extends from a surface of the head to a first height and the second end extends from the surface of the head to a second height. A difference between the first height and the second height is greater than or equal to 2.25 mm.
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