Writing instrument refills and writing instrument
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United States of America Patent
Stats
-
Sep 17, 2024
Grant Date -
Nov 2, 2023
app pub date -
Apr 26, 2023
filing date -
Apr 28, 2022
priority date (Note) -
In Force
status (Latency Note)
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Abstract
In one embodiment, a writing instrument refill includes a first portion having flexibility, and a second portion having a cross-sectional area larger than a cross-sectional area of the first portion, wherein the center of figure of the cross section of the first portion is offset from the center of the figure of the cross section of the second portion, the first portion and the second portion are formed integrally, and a part of the first portion has an outer diameter smaller than an outer diameter of the other part of the first portion.
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Family
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