Toothbrush having needle-shaped bristle tapered at one end...

Details Toothbrush having needle-shaped bristle tapered at one end... Toothbrush having needle-shaped bristle tapered at one end...

2007-02-27

2008-11-11

Chin, Randall (Department: 3723)

Brush, broom, and mop making

Processes

Reexamination Certificate

active

07448693

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.

REFERENCES:
patent: 1413211 (1922-04-01), Albright, Jr.
patent: 5176427 (1993-01-01), Weihrauch
patent: 5350219 (1994-09-01), Shou-Jen
patent: 5390984 (1995-02-01), Boucherie et al.
patent: 5609890 (1997-03-01), Boucherie
patent: 6290302 (2001-09-01), Boucherie
patent: 6290303 (2001-09-01), Boucherie
patent: 6764142 (2004-07-01), Kwon
patent: 6792642 (2004-09-01), Wagstaff
patent: 2003/0132661 (2003-07-01), Sato et al.
Office Action from parent application dated Jul. 19, 2006.
Office Action from parent application dated Nov. 15, 2006.
Office Action from parent application dated Apr. 4, 2007.
Office Action from parent application dated Oct. 4, 2007.

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