Airtight retractable writing device

Details Airtight retractable writing device Airtight retractable writing device

2005-06-28

2008-12-16

Huynh, Khoa D (Department: 3751)

Coating implements with material supply

Projectable and retractable tool

With movable closure or gate

C401S108000, C401S099000

Reexamination Certificate

active

07465112

ABSTRACT:
A retractable writing device is provided that contains a nib airtight unit with a lid. The nib airtight unit with a lid includes an airtight body, an airtight lid, and/or an elastic loop. The nib airtight unit with a lid is capable of providing effective and durable airtight function for various shapes of nibs.

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