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GB8323512D0 - Tobacco smoke filters - Google Patents

Tobacco smoke filters

Info

Publication number
GB8323512D0
GB8323512D0 GB838323512A GB8323512A GB8323512D0 GB 8323512 D0 GB8323512 D0 GB 8323512D0 GB 838323512 A GB838323512 A GB 838323512A GB 8323512 A GB8323512 A GB 8323512A GB 8323512 D0 GB8323512 D0 GB 8323512D0
Authority
GB
United Kingdom
Prior art keywords
tobacco smoke
smoke filters
filters
tobacco
smoke
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.)
Granted
Application number
GB838323512A
Other versions
GB2130468B (en
GB2130468A (en
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.)
Imperial Group PLC
Original Assignee
Imperial Group PLC
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
Priority claimed from GB838301206A external-priority patent/GB8301206D0/en
Application filed by Imperial Group PLC filed Critical Imperial Group PLC
Priority to GB08323512A priority Critical patent/GB2130468B/en
Publication of GB8323512D0 publication Critical patent/GB8323512D0/en
Publication of GB2130468A publication Critical patent/GB2130468A/en
Application granted granted Critical
Publication of GB2130468B publication Critical patent/GB2130468B/en
Expired legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24DCIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/04Tobacco smoke filters characterised by their shape or structure
    • A24D3/043Tobacco smoke filters characterised by their shape or structure with ventilation means, e.g. air dilution
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24DCIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/02Manufacture of tobacco smoke filters
    • A24D3/025Final operations, i.e. after the filter rod forming process
    • A24D3/0258Means for making grooves
GB08323512A 1982-09-02 1983-09-01 Improvements in or relating to tobacco smoke filters Expired GB2130468B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08323512A GB2130468B (en) 1982-09-02 1983-09-01 Improvements in or relating to tobacco smoke filters

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB8225081 1982-09-02
GB838301206A GB8301206D0 (en) 1983-01-17 1983-01-17 Tobacco smoke filters
GB08323512A GB2130468B (en) 1982-09-02 1983-09-01 Improvements in or relating to tobacco smoke filters

Publications (3)

Publication Number Publication Date
GB8323512D0 true GB8323512D0 (en) 1983-10-05
GB2130468A GB2130468A (en) 1984-06-06
GB2130468B GB2130468B (en) 1986-06-25

Family

ID=27261722

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08323512A Expired GB2130468B (en) 1982-09-02 1983-09-01 Improvements in or relating to tobacco smoke filters

Country Status (1)

Country Link
GB (1) GB2130468B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4617946A (en) * 1984-11-09 1986-10-21 Brown & Williamson Tobacco Corporation Tobacco smoke mouthpiece and method of making same
EP1797780A1 (en) * 2005-12-15 2007-06-20 Gallaher Limited Smoking article

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4473985A (en) * 1982-04-30 1984-10-02 Terence Hunt Building block

Also Published As

Publication number Publication date
GB2130468B (en) 1986-06-25
GB2130468A (en) 1984-06-06

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20000901