TREA

for making stairs or stair units comprising more than one step

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  • CPC
  • B28B7/225
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Parent Industries

BPERFORMING OPERATIONS TRANSPORTING B28Stoneworking B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL B28B7/00Moulds Cores Mandrels

Current Industry

B28B7/225for making stairs or stair units comprising more than one step
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Prefabricated stairs modular assembly mold and assembling method th...
    • Patent number 11,034,054
    • Issue date Jun 15, 2021
    • China University of Mining and Technology
    • Hong Chang
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Method and apparatus for production of precision precast concrete f...
    • Patent number 10,500,760
    • Issue date Dec 10, 2019
    • Richard J. Eggleston
    • E04 - BUILDING
  • Information Patent Grant

    Stair edging component
    • Patent number 10,443,246
    • Issue date Oct 15, 2019
    • Patent Agencies Limited
    • Anthony William Costello
    • E04 - BUILDING
  • Information Patent Grant

    Pre-cast monolithic concrete stair with dual edge beams, method and...
    • Patent number 8,910,434
    • Issue date Dec 16, 2014
    • Metromont Corporation
    • Mark E. Zirbel
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Stair forming method and apparatus
    • Patent number 8,616,518
    • Issue date Dec 31, 2013
    • SRB Construction Technologies Pty. Ltd.
    • Robert Sladojevic
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Stair forming apparatus and related methods
    • Patent number 8,262,055
    • Issue date Sep 11, 2012
    • Any Step Technology Limited
    • Anthony William Costello
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Steps made easy for concrete only
    • Patent number 7,185,875
    • Issue date Mar 6, 2007
    • Samuel Jarrett
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Mechanism for simultaneously adjusting the step support angles of a...
    • Patent number 6,918,190
    • Issue date Jul 19, 2005
    • Bernard Choquet
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Adjustable sheet metal moulds for steel and precast concrete stairs
    • Patent number 5,511,347
    • Issue date Apr 30, 1996
    • Horst G. W. Schwarz
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Adjustable mold for casting a concrete stairway
    • Patent number 5,133,530
    • Issue date Jul 28, 1992
    • Bjorn O. Thoresen
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Adjustable mold for the manufacture of concrete elements such as st...
    • Patent number 4,714,231
    • Issue date Dec 22, 1987
    • Bernard Colman
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Concrete ramp form
    • Patent number 4,569,500
    • Issue date Feb 11, 1986
    • Earl R. Beede
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3912218
    • Patent number 3,912,218
    • Issue date Oct 14, 1975
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3863885
    • Patent number 3,863,885
    • Issue date Feb 4, 1975
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3851431
    • Patent number 3,851,431
    • Issue date Dec 3, 1974
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3836109
    • Patent number 3,836,109
    • Issue date Sep 17, 1974
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3823910
    • Patent number 3,823,910
    • Issue date Jul 16, 1974
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3780976
    • Patent number 3,780,976
    • Issue date Dec 25, 1973
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3599929
    • Patent number 3,599,929
    • Issue date Aug 17, 1971
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3567172
    • Patent number 3,567,172
    • Issue date Mar 2, 1971
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3310275
    • Patent number 3,310,275
    • Issue date Mar 21, 1967
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3281110
    • Patent number 3,281,110
    • Issue date Oct 25, 1966
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3269688
    • Patent number 3,269,688
    • Issue date Aug 30, 1966
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3212155
    • Patent number 3,212,155
    • Issue date Oct 19, 1965
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3126605
    • Patent number 3,126,605
    • Issue date Mar 31, 1964
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3055146
    • Patent number 3,055,146
    • Issue date Sep 25, 1962
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2971238
    • Patent number 2,971,238
    • Issue date Feb 14, 1961
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2880491
    • Patent number 2,880,491
    • Issue date Apr 7, 1959
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2857646
    • Patent number 2,857,646
    • Issue date Oct 28, 1958
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2713710
    • Patent number 2,713,710
    • Issue date Jul 26, 1955
    • B28 - WORKING CEMENT, CLAY, OR STONE

Patents Applicationslast 30 patents