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Toothbrush having needle-shaped bristle tapered at one end and manufacturing method thereof
   
Document Number
US Patent 7448693
Issued Date
November 11, 2008
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Inventors
Kwon; Young-Jun (Paju, Gyunggi-do,KR)
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Abstract
A toothbrush tufted with needle-shaped bristles. The bristles are formed of polyester resin. The bristles are 0.1 to 0.2 mm thick before tapering, 13 to 18 mm long, tapered 4 to 8 mm only on one end with a tapered tip thickness of 0.01 to 0.08 mm, and planted to be 7 to 13 mm high in the toothbrush.
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Number of Claims:
4
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Published
November 11, 2008
Application Number
11/710,920
Filed
February 27, 2007
US Classification
300/21  
Int'l Classification
A46D   3/04   (20060101)  
Examiner
Parent Case
CROSS REFERENCE TO RELATED APPLCIATION This application is a divisional of U.S. Ser. No. 10/627,913, filed on Jul. 28, 2003 now abandoned. This application, in its entirety, is incorporated herein by reference.
Priority Data
Dec 03, 2002 [KR] 10-2002-76349
USPTO Field of Search
300/21  
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