TREA

Ventilating concrete block

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Information

  • Patent Grant
  • D264997
  • Patent Number
    D264,997
  • Date Filed
    Friday, April 11, 1980
    45 years ago
  • Date Issued
    Tuesday, June 15, 1982
    42 years ago
  • US Classifications
    Field of Search
    • US
    • 052 592
    • 052 595
    • 052 596
    • 052 605
    • 052 606
    • 052 607
    • 052 673
    • 052 663
    • 052 303
    • 052 302
    • 052 473
    • D25 80
    • D25 87
    • D25 88
    • D25 89
    • D25 91
    • D25 97
  • International Classifications
    • Term of Grant
      14Years
Information
Abstract
Description
Claims
  • The ornamental design for a ventilating concrete block, as shown and described.
US Referenced Citations (3)
Number Name Date Kind
D168221 Gonnella Nov 1952
D196970 Fulwider Nov 1963
D246386 Hardin Nov 1977