ZA716273B - Improvements relating to tobacco-smoke filters - Google Patents
Improvements relating to tobacco-smoke filtersInfo
- Publication number
- ZA716273B ZA716273B ZA716273A ZA716273A ZA716273B ZA 716273 B ZA716273 B ZA 716273B ZA 716273 A ZA716273 A ZA 716273A ZA 716273 A ZA716273 A ZA 716273A ZA 716273 B ZA716273 B ZA 716273B
- Authority
- ZA
- South Africa
- Prior art keywords
- tobacco
- improvements relating
- smoke filters
- smoke
- filters
- Prior art date
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
- A24D3/02—Manufacture of tobacco smoke filters
- A24D3/0229—Filter rod forming processes
- A24D3/0237—Filter rod forming processes by extrusion
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4770770 | 1970-10-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA716273B true ZA716273B (en) | 1972-05-31 |
Family
ID=10445984
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA716273A ZA716273B (en) | 1970-10-07 | 1971-09-20 | Improvements relating to tobacco-smoke filters |
Country Status (7)
Country | Link |
---|---|
AU (1) | AU460006B2 (en) |
BE (1) | BE773622A (en) |
CA (1) | CA939225A (en) |
CH (1) | CH544514A (en) |
GB (1) | GB1331096A (en) |
NL (1) | NL172021B (en) |
ZA (1) | ZA716273B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4282890A (en) * | 1978-03-13 | 1981-08-11 | Celanese Corporation | Open cell structure foamed cellulose acetate filters |
ES2420685T5 (en) † | 2008-05-21 | 2017-02-10 | R.J. Reynolds Tobacco Company | Apparatus and associated method for forming a filter component of a smoking article and smoking articles manufactured therefrom |
GB201112539D0 (en) | 2011-07-21 | 2011-08-31 | British American Tobacco Co | Porous carbon and methods of production thereof |
US11291242B2 (en) * | 2019-08-28 | 2022-04-05 | Aiger Group Ag | Apparatus and method for forming a smoke filter |
-
1970
- 1970-10-07 GB GB4770770A patent/GB1331096A/en not_active Expired
-
1971
- 1971-09-20 ZA ZA716273A patent/ZA716273B/en unknown
- 1971-09-21 CA CA123,305A patent/CA939225A/en not_active Expired
- 1971-09-24 AU AU33886/71A patent/AU460006B2/en not_active Expired
- 1971-10-01 NL NLAANVRAGE7113503,A patent/NL172021B/en not_active IP Right Cessation
- 1971-10-06 CH CH1450971A patent/CH544514A/en not_active IP Right Cessation
- 1971-10-07 BE BE773622A patent/BE773622A/en unknown
Also Published As
Publication number | Publication date |
---|---|
DE2149434B2 (en) | 1976-05-06 |
NL172021B (en) | 1983-02-01 |
AU3388671A (en) | 1973-03-29 |
DE2149434A1 (en) | 1972-05-10 |
NL7113503A (en) | 1972-04-11 |
AU460006B2 (en) | 1975-04-10 |
GB1331096A (en) | 1973-09-19 |
CH544514A (en) | 1973-11-30 |
CA939225A (en) | 1974-01-01 |
BE773622A (en) | 1972-01-31 |
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