Filter
United States Patent 2999503
US Patent References:
/0598086.html
- - 0598086

Cigarette
- - 1980563

Filter for pipes and cigar or cigarette holders
- - 2033867

Filter mouthpiece cigarette
- - 2035398

Cigarette mouthpiece
- - 2039298


Inventors:
Schur, Milton O.
Rickards, James C.
Publication Date:
09/12/1961
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Assignee:
Olin, Mathieson
Primary Class:
131/340
Other Classes:
55/486, 493/42, 131/362, 55/524
International Classes:
A24D3/10; A24D3/00
US Patent References:
2064239Smoke filter plug or wad for cigarette paper tubes
2164702Method and apparatus for making cigarette mouthpieces
2221443Mouthpiece cigarette manufacture
2372437Filter medium
2497074Modified urea-formaldehyde resins and methods of preparing the same
2668544Cigarette mouthpiece material
2708982Filter media
Foreign References:
IT448889B