TREA

Robert Schaaf

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  • Ozone Park, NY, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Filter press assembly
    • Patent number 4,053,416
    • Issue date Oct 11, 1977
    • Air Filters, Inc.
    • Laurence M. Howard
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Vacuum cleaner filter bag
    • Patent number 4,028,074
    • Issue date Jun 7, 1977
    • Air Filters, Inc.
    • Robert Schaaf
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Removable filter cloth for a leaf filter of a pressure vessel
    • Patent number 4,022,695
    • Issue date May 10, 1977
    • Air Filters, Inc.
    • Laurence M. Howard
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Filter bag and coupling
    • Patent number 4,015,961
    • Issue date Apr 5, 1977
    • Air Filters, Inc.
    • Laurence M. Howard
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Carpeting tool for a vacuum cleaner
    • Patent number 3,992,748
    • Issue date Nov 23, 1976
    • Air Filters, Inc.
    • Sol Howard
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Horseshoe-shaped vacuum cleaner filter bag
    • Patent number 3,973,936
    • Issue date Aug 10, 1976
    • Sol Howard
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...