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Darwin T. McKnight

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  • Louisville, OH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Upper portion of an upright vacuum cleaner
    • Patent number D485028
    • Issue date Jan 6, 2004
    • The Hoover Company
    • Richard S. Parr
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Foot of an upright vacuum cleaner
    • Patent number D473986
    • Issue date Apr 29, 2003
    • The Hoover Company
    • Richard S. Parr
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Vacuum cleaner nozzle adapter
    • Patent number 6,401,296
    • Issue date Jun 11, 2002
    • The Hoover Company
    • Darwin T. McKnight
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Tool storage door for a floor care appliance
    • Patent number 6,374,452
    • Issue date Apr 23, 2002
    • The Hoover Company
    • John D. Essex
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Vacuum cleaner tool door
    • Patent number D450896
    • Issue date Nov 20, 2001
    • The Hoover Company
    • John D. Essex
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Vacuum cleaner nozzle adapter
    • Patent number 6,038,732
    • Issue date Mar 21, 2000
    • The Hoover Company
    • Darwin T. McKnight
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Top front portion of a handle portion of an upright carpet extractor
    • Patent number D415596
    • Issue date Oct 19, 1999
    • The Hoover Company
    • John D. Essex
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Handle portion of an upright carpet extractor
    • Patent number D403482
    • Issue date Dec 29, 1998
    • The Hoover Company
    • John D. Essex
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Carpet extractor
    • Patent number D398100
    • Issue date Sep 8, 1998
    • The Hoover Company
    • Ronald J. Stephens
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Turbine powered extractor nozzle
    • Patent number D393113
    • Issue date Mar 31, 1998
    • The Hoover Company
    • John D. Essex
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Vacuum cleaner latch
    • Patent number D381142
    • Issue date Jul 15, 1997
    • The Hoover Company
    • Darwin T. McKnight
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Combined wet and dry vacuum cleaner
    • Patent number D372567
    • Issue date Aug 6, 1996
    • The Hoover Company
    • David W. Moine
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Combined wet and dry vacuum cleaner
    • Patent number D361179
    • Issue date Aug 8, 1995
    • The Hoover Company
    • David W. Moine
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Vacuum cleaner nozzle
    • Patent number D358242
    • Issue date May 9, 1995
    • The Hoover Company
    • Darwin T. McKnight
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Utility blower
    • Patent number D354378
    • Issue date Jan 10, 1995
    • The Hoover Company
    • Darwin T. McKnight
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Stacked looped hose rack for upright cleaner
    • Patent number 5,331,714
    • Issue date Jul 26, 1994
    • The Hoover Company
    • John D. Essex
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Hose and tool rack for upright vacuum cleaner and method for mounti...
    • Patent number 5,303,447
    • Issue date Apr 19, 1994
    • The Hoover Company
    • Darwin T. McKnight
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Combined vacuum cleaner hose and tool rack
    • Patent number D344821
    • Issue date Mar 1, 1994
    • The Hoover Company
    • Darwin T. McKnight
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Vacuum cleaner upper portion
    • Patent number D339435
    • Issue date Sep 14, 1993
    • The Hoover Company
    • Darwin T. McKnight
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Suction cleaner nozzle
    • Patent number D338990
    • Issue date Aug 31, 1993
    • The Hoover Company
    • Darwin T. McKnight
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Conversion door for vacuum cleaner hood
    • Patent number D338753
    • Issue date Aug 24, 1993
    • The Hoover Company
    • Darwin T. McKnight
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Cleaner upper portion with tool storage and door
    • Patent number 5,233,722
    • Issue date Aug 10, 1993
    • The Hoover Company
    • Darwin T. McKnight
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Vacuum cleaner hose rack with tool storage
    • Patent number D334260
    • Issue date Mar 23, 1993
    • The Hoover Company
    • Milton G. Kieft
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Combined vacuum cleaner hose and rack
    • Patent number D334261
    • Issue date Mar 23, 1993
    • The Hoover Company
    • Darwin T. McKnight
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Combined vacuum cleaner hose and rack
    • Patent number D333020
    • Issue date Feb 2, 1993
    • The Hoover Company
    • Darwin T. McKnight
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Combined vacuum cleaner hose and rack
    • Patent number D330615
    • Issue date Oct 27, 1992
    • The Hoover Company
    • John D. Essex
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Combined vacuum cleaner hose and rack
    • Patent number D330616
    • Issue date Oct 27, 1992
    • The Hoover Company
    • Richard A. Wareham
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Combined vacuum cleaner tool and hose rack
    • Patent number D329511
    • Issue date Sep 15, 1992
    • The Hoover Company
    • Darwin T. McKnight
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Power nozzle for a vacuum cleaner
    • Patent number D329512
    • Issue date Sep 15, 1992
    • The Hoover Company
    • Darwin T. McKnight
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Hose and tool rack
    • Patent number 5,137,156
    • Issue date Aug 11, 1992
    • The Hoover Company
    • Richard F. Riczinger
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...