Patents by Inventor William G. Hoffman

William G. Hoffman has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Plastic shopping cart
    Patent number: 6761364
    Abstract: A plastic shopping cart is disclosed. In accordance with certain aspects of the present invention, all of the components of a shopping cart are formed from a moldable material such as, for example, a thermoplastic resin by means of an injection molding process or the like. The shopping cart is configured so that any metallic parts that are used to connect the various plastic components together are shielded from the ambient environment. This virtually eliminates any rusting and corrosion of any metallic parts that are used to connect the various components of the shopping cart together.
    Type: Grant
    Filed: March 19, 2002
    Date of Patent: July 13, 2004
    Assignee: Patent Holding Company
    Inventors: Jason T. Murar, Jeffrey M. Stribbell, Donald L. Wilson, Jr., William G. Hoffman
  • Plastic shopping cart
    Publication number: 20030057666
    Abstract: A plastic shopping cart is disclosed. In accordance with certain aspects of the present invention, all of the components of a shopping cart are formed from a moldable material such as, for example, a thermoplastic resin by means of an injection molding process or the like. The shopping cart is configured so that any metallic parts that are used to connect the various plastic components together are shielded from the ambient environment. This virtually eliminates any rusting and corrosion of any metallic parts that are used to connect the various components of the shopping cart together.
    Type: Application
    Filed: March 19, 2002
    Publication date: March 27, 2003
    Inventors: Jason T. Murar, Jeffrey M. Stribbell, Donald L. Wilson, William G. Hoffman