Tobacco – Smoke separator or treater – By chemical reaction – e.g. – ion-exchange – chelating,...
Reexamination Certificate
2005-03-17
2009-02-10
Tucker, Philip C (Department: 1791)
Tobacco
Smoke separator or treater
By chemical reaction, e.g., ion-exchange, chelating,...
C131S331000
Reexamination Certificate
active
07487782
ABSTRACT:
A cigarette filter has a filter medium containing an inorganic basic substance such as sodium carbonate and a moisturizing agent selected from the group consisting of glycerin, sodium propionate and sodium lactate.
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Hasegawa Takashi
Sasaki Takashi
Tarora Masafumi
Birch & Stewart Kolasch & Birch, LLP
Felton Michael J
Japan Tobacco Inc.
Tucker Philip C
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