Title:
Tobacco smoke filter
United States Patent 3251365

Inventors:
Keith II, Charles H.
Bates Jr., William W.
Publication Date:
05/17/1966
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Assignee:
Keith II, Charles H.
Bates Jr., William W.
Primary Class:
131/344
Other Classes:
131/334, 131/342
International Classes:
A24D3/14; A24D3/16; B01J20/00; B01J20/28; C01B31/12; C01B31/14; A24D3/00; C01B31/00
US Patent References:
2792006Filters and filter material for use in filtering tobacco smoke
2795227Tobacco smoke filter
2815760Tobacco smoke filter
2966157Polyolefin tobacco smoke filters
3033212Tobacco smoke filter containing polyolefin cobweb additive
Foreign References:
GB190507808A
GB190228470A
GB654994A