Airtight retractable writing device
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United States of America Patent
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-
Dec 16, 2008
Grant Date -
Jan 5, 2006
app pub date -
Jun 28, 2005
filing date -
Jun 28, 2004
priority date (Note) -
Expired
status (Latency Note)
Importance
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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