Patents by Inventor Harrold J. Ulmer

Harrold J. Ulmer 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).

  • Shopping cart
    Patent number: 4726596
    Abstract: An improved shopping cart having a pivoted platform mounting a pair of spaced caster assemblies. The platform has a pivot to permit each caster assembly to pivot independent of the other assembly to substantially continuously engage a supporting surface to thereby avoid the "three-wheel" cart problems.
    Type: Grant
    Filed: September 5, 1986
    Date of Patent: February 23, 1988
    Assignee: Whittar Industries, Ltd.
    Inventor: Harrold J. Ulmer