PAPER FILTER
Number of patents in Portfolio can not be more than 2000
United States of America
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Issued Date -
Jan 16, 2025
app pub date -
Nov 23, 2022
filing date -
Nov 23, 2022
priority date (Note) -
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status (Latency Note)
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Abstract
A mouthpiece, filter or filter element comprising a longitudinally extending core of paper or other biodegradable (e.g., non-cellulose acetate containing) filtering material, a first wrapper engaged around the peripheral surface of the core, and a second wrapper engaged around the first wrapper, the first wrapper defining at least with the second wrapper a plurality of channels extending longitudinally from the upstream end of the mouthpiece, filter or filter element and/or a plurality of channels extending longitudinally from the downstream end of the mouthpiece, filter or filter element.
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