Patent · US Active

Filter for a smoking article

US8616219B2 · kind B2 · utility

1Cited by

6References

15Claims

0Family size

Assignee

British American Tobacco (Investments) Limited · GB

Inventors

John Richardson · Oklahoma City, US
Joseph SUTTON · London, GB

Key dates

Filing date	Nov 19, 2010
Grant date	Dec 31, 2013
Priority date	—
Expiry date	Nov 19, 2030

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T156/101
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

A filter (3) for a smoking article (1) comprises one or more segments (4a, 4b, 4c) of filtration media and a substantially transparent wrapper (5). The one or more filter segments (4a, 4b, 4c) and the wrapper (5) define a recess or cavity in the filter (3). An anchoring adhesive (7) is provided to secure the one or more filter segments (4a, 4b, 4c) to the wrapper (5). The anchoring adhesive (7) is disposed exclusively between the wrapper (5) and portions of the one or more filter segments (4a, 4b, 4c) other than those corresponding to the recess or cavity.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.