TREA

Gerald E. Umberson

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  • Alta Loma, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Trenching machine
    • Patent number 5,465,511
    • Issue date Nov 14, 1995
    • Capitol Trencher Corporation
    • Gerald E. Umberson
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Torsional limiting device for a vehicular ditching apparatus
    • Patent number 4,937,957
    • Issue date Jul 3, 1990
    • Capitol Trencher Corporation
    • Gerald E. Umberson
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Trenching device
    • Patent number 4,720,929
    • Issue date Jan 26, 1988
    • Capitol Trencher Corporation
    • Gerald E. Umberson
    • B60 - VEHICLES IN GENERAL