Filter tip cagarette
AssigneeRothmans International Services Limited
InventorsDavid H. Jones, Jerzy Kijowski
Life of this patent
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Abstract
A filter tip cigarette comprising a rod of smoking material having an inner wrapper of sidestream reducing paper containing carbon as part of its total filler content and an outer overwrapping cigarette paper, and a ventilated filter tip of low efficiency / high pressure drop which provides a mainstream CO / "tar" ratio of 1:0 or less in conjunction with the filter ventilation.
Claims19
A filter tip cigarette comprising a rod of smoking material having an inner wrapper of sidestream reducing paper containing carbon as part of its total filler content and an outer overwrapping cigarette paper, and a ventilated filter tip of low efficiency having a high pressure drop of more than 60 mmWG which provides a mainstream CO/"tar" ratio of 1.0 or less in conjunction with the filter ventilation.
Dependencies are inferred from the claim text.