TREA

Bubble diffuser

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Information

  • Patent Grant
  • D324279
  • Patent Number
    D324,279
  • Date Filed
    Monday, August 21, 1989
    35 years ago
  • Date Issued
    Tuesday, February 25, 1992
    32 years ago
  • US Classifications
    Field of Search
    • US
    • 119 5
    • D23 209
    • D23 213
    • D30 101-107
    • D11 145
    • D09 401
    • Term of Grant
      14Years
Information
Abstract
Description
Claims
  • The ornamental design for a bubble diffuser, as shown and described.
US Referenced Citations (8)
Number Name Date Kind
D246109 Rosaen Oct 1977
D264617 Freeman May 1982
1956524 Byram Apr 1934
3289847 Rothemund Dec 1966
3304912 Hackman et al. Feb 1967
3314396 Willinger Apr 1967
4481905 Fonseca Nov 1984
4522151 Arbisi et al. Jun 1985
Foreign Referenced Citations (1)
Number Date Country
2811943 Sep 1979 DEX
Non-Patent Literature Citations (3)
Entry
Zenco Novelty Co. Products Catalog; p. 67, Item 851, (center p.), Stem For Filter and Air Releasers.
Living World Catalog; .COPYRGT.1977; p. 24; Item 88715, Hush I.RTM. Air Pump & Filter Kit.
Metaframe Catalog No. 70; .COPYRGT.1970; p. 40; Bubble-Up Airstone, Item No. 335, (top, left corner).