Filter for a smoking article

US8960198B2 · 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: Nov 14, 2013
• Grant date: Feb 24, 2015
• Expiry date: Nov 14, 2033

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 flowpath (13) through the filter, a second flowpath (14) through the filter, the second flowpath being disposed around the first flowpath, and a selector (16) for allowing flow selectively through the first and second flowpaths.