TREA

Structural block

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Information

  • Patent Grant
  • D429531
  • Patent Number
    D429,531
  • Date Filed
    Wednesday, March 17, 1999
    25 years ago
  • Date Issued
    Tuesday, August 15, 2000
    24 years ago
  • US Classifications
    Field of Search
    • US
    • D25 102
    • D25 113-118
    • D21 484-486
    • D21 488-493
    • D21 499-505
    • 052 574-575
    • 052 596
    • 052 604-612
    • 404 33-42
    • 405 284-286
  • International Classifications
    • 2501
    • Term of Grant
      14Years
Information
Abstract
Description
Claims
  • The ornamental design for a structural block, as shown.
US Referenced Citations (23)
Number Name Date Kind
D291601 D'Antonio et al. Aug 1987
D306764 D'Antonio et al. Mar 1990
D387183 VonDross Dec 1997
D409312 Staten et al. May 1999
439641 Farrar Nov 1890
916756 Mosstman et al. Mar 1909
1441156 Kindstrom Jan 1923
2933146 Zaldastani et al. Apr 1960
3506089 Junger Apr 1970
3837426 Kleinschmidt Sep 1974
3866001 Kleinschmidt et al. Feb 1975
4269013 West May 1981
4319661 Proudfoot Mar 1982
4499142 Kingston Feb 1985
4821839 D'Antonio et al. Apr 1989
4833852 West May 1989
4964486 D'Antonio et al. Oct 1990
5027920 D'Antonio et al. Jul 1991
5168129 D'Antonio Dec 1992
5193318 D'Antonio et al. Mar 1993
5226267 D'Antonio et al. Jul 1993
5401921 D'Antonio et al. Mar 1995
5700983 VonDross Dec 1997
Foreign Referenced Citations (3)
Number Date Country
941261 Jul 1948 FRX
975512 Oct 1950 FRX
985243 May 1951 FRX
Non-Patent Literature Citations (3)
Entry
RPG Diffuser Systems, Inc.. DIFFUSORBLOX--The First Radically New Development in Acoustical Concrete Masonry Technology in 30 Years.
West Materials, Inc., "ENERBLOCK--Insulating Concrete Masonry".
Sweet's General Building & Renovation 1993 Catalog File: Oldcastle Architectural Products, Florentine Collection, highlighted stones.