Patents by Inventor Mark T. Day

Mark T. Day 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).

  • Helping handle shovel system
    Patent number: 10709052
    Abstract: A secondary shaft has a secondary upper end, a secondary lower end, and a secondary intermediate region. A grip is positioned on the secondary upper end of the secondary shaft. A coupling assembly releasably attaches the secondary shaft to a primary shaft of a shovel. The coupling assembly includes a resilient member coupled to the secondary lower end of the secondary shaft.
    Type: Grant
    Filed: June 9, 2019
    Date of Patent: July 14, 2020
    Inventor: Mark T. Day