Filter for a smoking article

US9730470B2 · kind B2 · utility

Assignee

• British American Tobacco (Investments) Limited · GB

Inventors

• Mark R. Bailey · London, GB
• Karl Kaljura · London, GB
• Paul Farenden · London, GB
• David Russell · London, GB
• Wilbert Schoenmakers · London, GB
• Darren Seymour · Cambridge, GB
• David Spendlove · London, GB

Key dates

• Filing date: May 11, 2012
• Grant date: Aug 15, 2017
• Expiry date: May 11, 2032

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A24D3/14
• WIPO field: Other consumer goods
• WIPO sector: Other fields

Abstract

A filter (11) for a smoking article (10) comprises a first flow path (13) through the filter, a second flow path (14) through the filter, the second flow path being disposed around the first flow path, and a selector (16) for allowing flow selectively through the first and second flow paths.