Patents by Inventor Don C. Law

Don C. Law 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).

  • Stair climber for hand trucks
    Patent number: 4420166
    Abstract: A two-wheeled hand truck or dolly with an attached stair climber construction which comprises a body member having a retaining flange overhanging both sides of the body, such flange having two portions spaced from one another by a gap. One of the flange portions is tapered adjacent the gap both longitudinally and transversely. The other portion of the flange tapers inwardly from the one edge of the body. A flexible, resilient, C-shaped synthetic plastic wear member removably embraces the flange, and extends the length of the latter.
    Type: Grant
    Filed: February 10, 1982
    Date of Patent: December 13, 1983
    Assignee: Magline, Inc.
    Inventors: Don C. Law, Carl N. Mortenson, Paul Ripple, Roger S. Eckhardt
  • Cover for the bed of a pickup truck
    Patent number: D310987
    Type: Grant
    Filed: July 6, 1988
    Date of Patent: October 2, 1990
    Assignee: Brahma, Inc.
    Inventors: Don C. Law, Richard Gibbs