TREA

Robert F. Shamet

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  • McPherson, KS, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Safety air plug and extrusion apparatus using same
    • Patent number 4,867,669
    • Issue date Sep 19, 1989
    • American Maplan Corporation
    • Flavio R. Da Silva
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Triple-wall foam coextrusion apparatus
    • Patent number 4,846,648
    • Issue date Jul 11, 1989
    • American Maplan Corporation
    • Steven E. Spence
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Triple-wall foam coextrusion apparatus
    • Patent number 4,731,002
    • Issue date Mar 15, 1988
    • American Maplan Corporation
    • Steven E. Spence
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL