EP 0022889 A1 19810128 - Tobacco smoke filter.
Title (en)
Tobacco smoke filter.
Title (de)
Filter für Tabakrauch.
Title (fr)
Filtre pour fumée de tabac.
Publication
Application
Priority
EP 79830020 A 19790618
Abstract (en)
A tobacco smoke filter embodied in a holder (10) for retaining cigarettes and cigars during the smoking thereof wherein inhaled smoke is drawn by suction through a series of sections (11, 12, 13, 14) and successively expanded and contracted to remove more and more tar and nicotine therefrom with means (16, 47) for cooling the smoke during its passage through the sections.
IPC 1-7
IPC 8 full level
A24F 13/04 (2006.01)
CPC (source: EP)
A24F 13/04 (2013.01)
Citation (search report)
US 4158364 A 19790619 - LIGETI ENRIQUE
Designated contracting state (EPC)
AT BE CH DE FR IT NL SE
DOCDB simple family (publication)
DOCDB simple family (application)
EP 79830020 A 19790618