Coating implements with material supply – Plural exposed tools each with individual supply
Reexamination Certificate
2007-12-20
2009-11-03
Walczak, David J (Department: 3751)
Coating implements with material supply
Plural exposed tools each with individual supply
C401S017000, C401S023000, C401S198000
Reexamination Certificate
active
07611300
ABSTRACT:
A double-head writing instrument has a barrel having a partition formed inside thereof, first and second ink-tanks provided inside the barrel so as not to communicate each other, first and second ink-retaining members connected with first and second nibs provided on an opening of the first and second ink-tanks, respectively, first and second ink reserved inside first and second ink-reservoirs, respectively. The partition is extended in an axial direction so as that the first and second ink-reservoirs overlap each other in a radial direction, and thickness C of the partition and thickness D of a side wall of the barrel connected with the partition satisfy a relation of 0.2≦C/D≦2.5.
REFERENCES:
patent: 4902151 (1990-02-01), Asano et al.
patent: 5338123 (1994-08-01), Obersteller et al.
patent: 6340260 (2002-01-01), Dao
patent: 6769827 (2004-08-01), Furukawa et al.
patent: 2001/0012468 (2001-08-01), Furukawa et al.
patent: 381 267 (1931-08-01), None
patent: 1270894 (2000-10-01), None
patent: 2666681 (2004-12-01), None
patent: 2857370 (1980-06-01), None
patent: 298 09 659 (1998-10-01), None
patent: 1 151 873 (2001-11-01), None
patent: 05-212997 (1993-08-01), None
patent: D1095259 (2000-10-01), None
patent: 2001-334794 (2001-12-01), None
patent: 2002-036786 (2002-06-01), None
Chinese Office Action Issued Nov. 23, 2007.
European Search Report for EP 04 02 9696 dated Jul. 3, 2007.
Sughrue & Mion, PLLC
The Pilot Ink Co., Ltd.
Walczak David J
LandOfFree
Double-head writing instrument does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Double-head writing instrument, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Double-head writing instrument will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4144380