Retractable writing tool and self sealing valve

Details Retractable writing tool and self sealing valve Retractable writing tool and self sealing valve

2007-08-07

2007-08-07

Walczak, David J. (Department: 3751)

Coating implements with material supply

Projectable and retractable tool

With movable closure or gate

C401S107000

Reexamination Certificate

active

10789698

ABSTRACT:
A capless retractable writing tool applicable to neutral and volatile writing fluids and capable of self sealing.

REFERENCES:
patent: 3796501 (1974-03-01), Zepell
patent: 5022773 (1991-06-01), Waldinger et al.
patent: 6033141 (2000-03-01), Blaustein et al.
patent: 7059796 (2006-06-01), Lewis et al.

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