发明名称 |
EXPANDABLE WRITING INSTRUMENT |
摘要 |
An expandable pen has a pen barrel with an expanding middle section. The pen barrel holds a retractable ball point pen refill cartridge When the pen is expanded, the writing tip of the refill is extended from a retracted position inside the pen barrel to a writing position, while the barrel becomes full length for comfort when writing. The pen may be collapsed for storage, which simultaneously retracts the writing tip inside the pen barrel.
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申请公布号 |
CA2357519(C) |
申请公布日期 |
2004.08.03 |
申请号 |
CA20012357519 |
申请日期 |
2001.09.20 |
申请人 |
A.T.X. INTERNATIONAL, INC. |
发明人 |
BROWNING, KEVIN LEE;MITTERSINKER, GREGOR;D'AMICO, RICHARD JOSEPH |
分类号 |
B43K5/17;B43K7/12;B43K24/02;B43K24/08;(IPC1-7):B43K25/00 |
主分类号 |
B43K5/17 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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