Smoking article filter and method of manufacturing the same
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United States of America Patent
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-
Feb 14, 2023
Grant Date -
Apr 9, 2020
app pub date -
Dec 11, 2019
filing date -
Jun 19, 2017
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A smoking article filter comprising: a filter material having a circular cylinder shape with first and second end surfaces and a side surface, and including a corrugated film with ridge portions and valley portions arranged alternately, the ridge portions and valley portions extending from the first end surface to the second end surface to form a plurality of air flow paths that allow air to flow from the first end surface to the second end surface; a plurality of particles arranged in the air flow paths; and a filter wrapping paper wrapping the filter material such that the side surface is covered with the filter wrapping paper.
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Family
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Cited Art Landscape
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