Patent US3707975 - FILTER CIGARETTE HAVING APERTURED BAND

Patents

Inventors: Alfred Charles Davis, Alfred Charles Davis
Current U.S. Classification: 131/336

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Citing Patent	Filing date	Issue date	Original Assignee	Title
US4433696	2 Oct 1981	28 Feb 1984	Philip Morris Incorporated	Variable dilution filter
US4526183	22 Feb 1984	2 Jul 1985	Philip Morris Incorporated	Filter cigarette
US7789089	4 Aug 2006	7 Sep 2010	R. J. Reynolds Tobacco Company	Filtered cigarette possessing tipping material
USRE32221	2 Oct 1984	12 Aug 1986		Variable dilution filter