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Donald A. Silberstein

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  • LeMans, FR
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Patents Grantslast 30 patents

  • Information Patent Grant

    Cigarette filter
    • Patent number 4,585,015
    • Issue date Apr 29, 1986
    • Brown & Williamson Tobacco Corporation
    • Donald A. Silberstein
    • A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
  • Information Patent Grant

    Cigarette filter
    • Patent number 4,424,819
    • Issue date Jan 10, 1984
    • Brown & Williamson Tobacco Corporation
    • Donald A. Silberstein
    • A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES