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John W. von Holdt

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  • Glenview, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Plastic lid construction
    • Patent number 6,880,716
    • Issue date Apr 19, 2005
    • Joseph Gottainer
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Plastic container and lid construction
    • Patent number 6,619,498
    • Issue date Sep 16, 2003
    • John W. von Holdt
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Method for adjustment of adjustable mold gate
    • Patent number 6,258,306
    • Issue date Jul 10, 2001
    • John W. von Holdt
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Container construction
    • Patent number 6,257,438
    • Issue date Jul 10, 2001
    • John W. von Holdt
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Universal mold
    • Patent number 6,171,094
    • Issue date Jan 9, 2001
    • John W. von Holdt
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Stack mold centering system
    • Patent number 6,106,265
    • Issue date Aug 22, 2000
    • John W. von Holdt
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Apparatus for molding a one-piece article in a single molding opera...
    • Patent number 6,106,261
    • Issue date Aug 22, 2000
    • Von Holdt; John W.
    • John W. von Holdt
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Plastic bucket and lid
    • Patent number 6,098,833
    • Issue date Aug 8, 2000
    • John W. von Holdt
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Container and locking lid
    • Patent number 5,979,691
    • Issue date Nov 9, 1999
    • John W. von Holdt
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Plastic bucket and lid
    • Patent number 5,913,446
    • Issue date Jun 22, 1999
    • John W. von Holdt
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Two part plastic container lid
    • Patent number 5,842,593
    • Issue date Dec 1, 1998
    • Von Holdt; John W.
    • John W. von Holdt
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Adjustable mold gate
    • Patent number 5,798,130
    • Issue date Aug 25, 1998
    • Von Holdt; John W.
    • John W. von Holdt
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Adjustable mold gate for a hot probe member
    • Patent number 5,780,077
    • Issue date Jul 14, 1998
    • Von Holdt; John W.
    • John W. von Holdt
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Snap-on, flexible lid
    • Patent number 5,538,154
    • Issue date Jul 23, 1996
    • John W. von Holdt
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Container with tamper-evident lid removal means
    • Patent number 5,437,386
    • Issue date Aug 1, 1995
    • John W. von Holdt
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Injection mold having a rotatable sprue member
    • Patent number 5,380,184
    • Issue date Jan 10, 1995
    • John W. Von Holdt
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Tear-away lid and container
    • Patent number 5,307,949
    • Issue date May 3, 1994
    • John W. Von Holdt
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Multiple cavity injection molding
    • Patent number 5,275,778
    • Issue date Jan 4, 1994
    • John W. Von Holdt
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Modular molding system
    • Patent number 5,262,116
    • Issue date Nov 16, 1993
    • John Von Holdt
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Multiple cavity injection mold
    • Patent number 5,169,655
    • Issue date Dec 8, 1992
    • John W. Von Holdt
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Container connector system
    • Patent number 4,982,858
    • Issue date Jan 8, 1991
    • John W. von Holdt
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Locking container connector system
    • Patent number 4,966,298
    • Issue date Oct 30, 1990
    • John W. von Holdt
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Childproof closure for large containers
    • Patent number 4,961,512
    • Issue date Oct 9, 1990
    • John W. von Holdt
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Safety lift lock with internal member
    • Patent number 4,881,715
    • Issue date Nov 21, 1989
    • John W. von Holdt
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Two stage mold centering system
    • Patent number 4,856,977
    • Issue date Aug 15, 1989
    • John W. von Holdt
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Flex gate
    • Patent number 4,808,106
    • Issue date Feb 28, 1989
    • John W. von Holdt
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Mold with wear member
    • Patent number 4,775,130
    • Issue date Oct 4, 1988
    • John W. von Holdt
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Rear opening mold process
    • Patent number 4,756,865
    • Issue date Jul 12, 1988
    • John W. von Holdt
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Safety lift lock
    • Patent number 4,753,415
    • Issue date Jun 28, 1988
    • John W. von Holdt
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Plastic lid having opening means
    • Patent number 4,735,337
    • Issue date Apr 5, 1988
    • John W. von Holdt
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL

Patents Applicationslast 30 patents

  • Information Patent Application

    Plastic lid construction
    • Publication number 20040222226
    • Publication date Nov 11, 2004
    • Joseph Gottainer
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Application

    Plastic bucket and lid stacking construction
    • Publication number 20040195251
    • Publication date Oct 7, 2004
    • Plas-Tool Company
    • John W. von Holdt
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Application

    Plastic bucket and lid
    • Publication number 20040195252
    • Publication date Oct 7, 2004
    • John W. von Holdt
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Application

    Plastic container and lid construction
    • Publication number 20040112906
    • Publication date Jun 17, 2004
    • Plas-Tool Company
    • John W. von Holdt
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Application

    Plastic container and lid construction
    • Publication number 20040045966
    • Publication date Mar 11, 2004
    • John W. von Holdt
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Application

    Plastic container and lid construction
    • Publication number 20040016757
    • Publication date Jan 29, 2004
    • John W. von Holdt
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Application

    Plastic bucket and lid
    • Publication number 20030168460
    • Publication date Sep 11, 2003
    • Plas-Tool Company
    • John W. von Holdt
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Application

    Plastic bucket and lid
    • Publication number 20020063134
    • Publication date May 30, 2002
    • John W. von Holdt
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Application

    Plastic container and lid construction
    • Publication number 20010047994
    • Publication date Dec 6, 2001
    • John W. von Holdt
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL