to form prestressed circumferential reinforcements

Patents Grantslast 30 patents

  • Information Patent Grant

    Application of inwardly directed prestressing pressure to concrete...

    • Patent number 4,771,530
    • Issue date Sep 20, 1988
    • General Atomics
    • Richard L. Creedon
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3488816

    • Patent number 3,488,816
    • Issue date Jan 13, 1970
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3195277

    • Patent number 3,195,277
    • Issue date Jul 20, 1965
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3103238

    • Patent number 3,103,238
    • Issue date Sep 10, 1963
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3063677

    • Patent number 3,063,677
    • Issue date Nov 13, 1962
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3036356

    • Patent number 3,036,356
    • Issue date May 29, 1962
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3023475

    • Patent number 3,023,475
    • Issue date Mar 6, 1962
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2913798

    • Patent number 2,913,798
    • Issue date Nov 24, 1959
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2803868

    • Patent number 2,803,868
    • Issue date Aug 27, 1957
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2597084

    • Patent number 2,597,084
    • Issue date May 20, 1952
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2561581

    • Patent number 2,561,581
    • Issue date Jul 24, 1951
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2414011

    • Patent number 2,414,011
    • Issue date Jan 7, 1947
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2319105

    • Patent number 2,319,105
    • Issue date May 11, 1943
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2048253

    • Patent number 2,048,253
    • Issue date Jul 21, 1936
    • B28 - WORKING CEMENT, CLAY, OR STONE

Patents Applicationslast 30 patents