US Patent 7487782 Cigarette filter

Patent 7487782 was granted and assigned to Japan Tobacco on February, 2009 by the United States Patent and Trademark Office.

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Patent

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Current Assignee

Japan Tobacco

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7487782

Date of Patent

February 10, 2009

Patent Application Number

11081549

Date Filed

March 17, 2005

Patent Primary Examiner

‌

Philip C. Tucker

Patent 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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