DE3403281C2 - Filter - Google Patents

Filter

Info

Publication number
DE3403281C2
DE3403281C2 DE3403281A DE3403281A DE3403281C2 DE 3403281 C2 DE3403281 C2 DE 3403281C2 DE 3403281 A DE3403281 A DE 3403281A DE 3403281 A DE3403281 A DE 3403281A DE 3403281 C2 DE3403281 C2 DE 3403281C2
Authority
DE
Germany
Prior art keywords
filter
mouth
filter part
tobacco rod
flow channels
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE3403281A
Other languages
German (de)
English (en)
Other versions
DE3403281A1 (de
Inventor
Otto Von Dipl Ing Appen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
British American Tobacco Germany GmbH
Original Assignee
BAT Cigarettenfabriken GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BAT Cigarettenfabriken GmbH filed Critical BAT Cigarettenfabriken GmbH
Priority to DE3403281A priority Critical patent/DE3403281C2/de
Priority to GR73719A priority patent/GR81454B/el
Priority to IT8420921U priority patent/IT8420921V0/it
Priority to IT19710/84A priority patent/IT1173316B/it
Publication of DE3403281A1 publication Critical patent/DE3403281A1/de
Application granted granted Critical
Publication of DE3403281C2 publication Critical patent/DE3403281C2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/04—Tobacco smoke filters characterised by their shape or structure
    • A24D3/043—Tobacco smoke filters characterised by their shape or structure with ventilation means, e.g. air dilution

Landscapes

  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
DE3403281A 1984-01-31 1984-01-31 Filter Expired - Fee Related DE3403281C2 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE3403281A DE3403281C2 (de) 1984-01-31 1984-01-31 Filter
GR73719A GR81454B (enExample) 1984-01-31 1984-02-06
IT8420921U IT8420921V0 (it) 1984-01-31 1984-02-20 Filtro per un articolo per fumatori.
IT19710/84A IT1173316B (it) 1984-01-31 1984-02-20 Filtro per un articolo per fumatori

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3403281A DE3403281C2 (de) 1984-01-31 1984-01-31 Filter

Publications (2)

Publication Number Publication Date
DE3403281A1 DE3403281A1 (de) 1985-08-01
DE3403281C2 true DE3403281C2 (de) 1994-11-17

Family

ID=6226359

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3403281A Expired - Fee Related DE3403281C2 (de) 1984-01-31 1984-01-31 Filter

Country Status (3)

Country Link
DE (1) DE3403281C2 (enExample)
GR (1) GR81454B (enExample)
IT (2) IT1173316B (enExample)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE500634C2 (sv) * 1992-12-22 1994-08-01 House Of Blend Ab Filtercigarett
GB9917820D0 (en) * 1999-07-29 1999-09-29 American Filtrona Corp Filter for a cigarette and filter-tipped cigarette
EP3167727B1 (en) 2015-11-16 2020-12-30 Reemtsma Cigarettenfabriken GmbH Smoking article
CN108078003B (zh) * 2017-12-25 2024-03-15 四川三联新材料有限公司 一种具有气流通道的纤维素纸环形器件及制备方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE612737C (de) * 1933-09-23 1935-05-03 Carbo Norit Union Verwaltungs Filtereinlage fuer Zigarren, Zigaretten, Rauchspitzen o. dgl.
US3490461A (en) * 1967-04-20 1970-01-20 Philip Morris Inc Cigarette ventilation
AU4119078A (en) * 1977-11-18 1980-05-08 Philip Morris Inc Filter system
AU559296B2 (en) * 1981-07-06 1987-03-05 Cigarette Components Limited Filter device

Also Published As

Publication number Publication date
IT8419710A1 (it) 1985-08-20
IT8419710A0 (it) 1984-02-20
DE3403281A1 (de) 1985-08-01
IT1173316B (it) 1987-06-24
GR81454B (enExample) 1984-12-11
IT8420921V0 (it) 1984-02-20

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8125 Change of the main classification

Ipc: A24D 3/04

D2 Grant after examination
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: BRITISH-AMERICAN TOBACCO (GERMANY) GMBH, 20354 HAM

8339 Ceased/non-payment of the annual fee