Production of tobacco smoke filters
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 4, 1981
Grant Date -
N/A
app pub date -
Apr 19, 1979
filing date -
Apr 21, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Tobacco smoke filters comprising a rod of tobacco smoke filtering material, such as cellulose acetate tow including a thread incorporated therein or a tape wrapped therearound, the thread or tape carrying a smoke-modifying agent, such as a flavoring material and methods and apparatus for forming such filters.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
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