Marker pens

Details Marker pens Marker pens

2007-07-03

2007-07-03

Walczak, David J. (Department: 3751)

Coating implements with material supply

Plural exposed tools each with individual supply

Side-by-side

C401S034000, C401S198000

Reexamination Certificate

active

10467416

ABSTRACT:
A marker pen comprises a tubular housing from one end of which protrudes a first fluid retaining nib replenished by fluid such as an indicator ink present in a first chamber positioned within the housing, and a second fluid retaining nib which also protrudes from the aforesaid end of the housing and is replenished by fluid such as an eradicator fluid present in a second chamber positioned within the housing. The protruding nibs are spaced one from the other.

REFERENCES:
patent: 3887287 (1975-06-01), Rosh, Jr.
patent: 5026189 (1991-06-01), Keil
patent: 5306092 (1994-04-01), Jenq
patent: 5388924 (1995-02-01), Chao
patent: 5412021 (1995-05-01), Nakanishi
patent: 6554517 (2003-04-01), Ahmed
patent: 6766817 (2004-07-01), Da Silva
patent: WO 91/00810 (1991-01-01), None
patent: WO 94/09997 (1994-05-01), None

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