CA951611A - Tobacco-smoke filters - Google Patents

Tobacco-smoke filters

Info

Publication number
CA951611A
CA951611A CA140,062,A CA140062A CA951611A CA 951611 A CA951611 A CA 951611A CA 140062 A CA140062 A CA 140062A CA 951611 A CA951611 A CA 951611A
Authority
CA
Canada
Prior art keywords
tobacco
smoke filters
smoke
filters
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
Application number
CA140,062,A
Other languages
English (en)
Other versions
CA140062S (en
Inventor
Donald B. Naylor
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 Investments Ltd
Original Assignee
British American Tobacco Co Ltd
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 British American Tobacco Co Ltd filed Critical British American Tobacco Co Ltd
Application granted granted Critical
Publication of CA951611A publication Critical patent/CA951611A/en
Expired 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
    • A24D3/045—Tobacco smoke filters characterised by their shape or structure with smoke acceleration means, e.g. impact-filters
CA140,062,A 1971-05-24 1972-04-18 Tobacco-smoke filters Expired CA951611A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1657271 1971-05-24

Publications (1)

Publication Number Publication Date
CA951611A true CA951611A (en) 1974-07-23

Family

ID=10079734

Family Applications (1)

Application Number Title Priority Date Filing Date
CA140,062,A Expired CA951611A (en) 1971-05-24 1972-04-18 Tobacco-smoke filters

Country Status (10)

Country Link
AU (1) AU456329B2 (member.php)
BE (1) BE783179A (member.php)
CA (1) CA951611A (member.php)
CH (1) CH546545A (member.php)
DE (1) DE2222289C3 (member.php)
DK (1) DK128804B (member.php)
FI (1) FI51895C (member.php)
GB (1) GB1323947A (member.php)
NL (1) NL171013C (member.php)
ZA (1) ZA722558B (member.php)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4343319A (en) * 1980-11-28 1982-08-10 Brown & Williamson Tobacco Corporation Cigarette filter
US4342322A (en) * 1980-12-22 1982-08-03 Brown & Williamson Tobacco Corporation Cigarette filter

Also Published As

Publication number Publication date
DE2222289B2 (de) 1978-02-23
NL171013B (nl) 1982-09-01
AU456329B2 (en) 1974-12-12
AU4141672A (en) 1973-10-25
DE2222289C3 (de) 1978-10-26
DE2222289A1 (de) 1972-12-07
ZA722558B (en) 1973-01-31
BE783179A (fr) 1972-09-01
FI51895B (member.php) 1977-01-31
NL7206903A (member.php) 1972-11-28
NL171013C (nl) 1983-02-01
CH546545A (fr) 1974-03-15
FI51895C (fi) 1977-05-10
DK128804B (da) 1974-07-08
GB1323947A (en) 1973-07-18

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