EP 4176736 A1 20230510 - ACTIVE PAPER
Title (en)
ACTIVE PAPER
Title (de)
AKTIVES PAPIER
Title (fr)
PAPIER ACTIF
Publication
Application
Priority
GB 202115989 A 20211108
Abstract (en)
A multi-segment filter comprising a first and second filter segment; wherein the first filter segment comprises a longitudinally extending (e.g., substantially cylindrical) core of paper filtering material and/or other biodegradable (e.g., non-cellulose acetate) filtering material with additive (e.g., a particulate additive, e.g., activated carbon) applied thereto; and wherein the second filter segment comprises a longitudinally extending (e.g., substantially cylindrical) core of paper filtering material or other biodegradable (e.g., non-cellulose acetate) filtering material.
IPC 8 full level
A24D 3/06 (2006.01); A24D 3/04 (2006.01); A24D 3/14 (2006.01); A24D 3/16 (2006.01)
CPC (source: EP KR)
A24D 3/0287 (2013.01 - KR); A24D 3/04 (2013.01 - KR); A24D 3/061 (2013.01 - EP KR); A24D 3/068 (2013.01 - EP KR); A24D 3/14 (2013.01 - EP KR); A24D 3/16 (2013.01 - EP); A24D 3/163 (2013.01 - EP KR); A24D 3/166 (2013.01 - EP KR); A24D 3/04 (2013.01 - EP)
Citation (search report)
- [XI] WO 2011077138 A1 20110630 - BRITISH AMERICAN TOBACCO CO [GB], et al
- [XAI] US 2013047999 A1 20130228 - RUSHFORTH DAVID [GB]
- [XI] EP 2712510 B1 20160302 - REEMTSMA H F & PH [DE]
- [XAI] US 2015059789 A1 20150305 - MCCORMACK ANTHONY DENIS [GB], et al
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
EP 4176736 A1 20230510; EP 4429486 A1 20240918; KR 20240119069 A 20240806; WO 2023079165 A1 20230511
DOCDB simple family (application)
EP 21216128 A 20211220; EP 2022081093 W 20221108; EP 22814031 A 20221108; KR 20247018570 A 20221108