B - Operations – Transporting – 43 – K
Patent
B - Operations, Transporting
43
K
207/73
B43K 1/00 (2006.01) B43K 5/02 (2006.01) B43K 5/18 (2006.01) B43K 8/03 (2006.01) B43K 8/14 (2006.01)
Patent
CA 2011485
Abstract of the Disclosure A pen containing free liquid ink in which the ink reservoir is vented to atmosphere by use of hydrophobic material whereby the pen is prevented from leaking ink through capillary vents or the like while having the pressure in the reservoir equalized with ambient elf pressure by the hydrophobic venting material.
Case Stephen F.
Dunn Dustin E.
Case Stephen F.
Dunn Dustin E.
Hewlett-Packard Company
Sim & Mcburney
LandOfFree
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