Toothbrush
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 18, 2000
Grant Date -
N/A
app pub date -
Nov 16, 1998
filing date -
May 14, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A toothbrush comprises a plurality of tufts each including a plurality of bristles embedded respectively in a plurality of bored holes formed in a head portion. The tufts each comprise a plurality of first bristles tapered towards distal ends thereof, and a plurality of second bristles likewise tapered towards the distal ends and each having a ball-like portion on each of the distal ends thereof. The distal ends of the first bristles are located in a higher position than the distal ends of the second bristles.
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Family
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Cited Art Landscape
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