Patents by Inventor Eric Calvin Bolinski

Eric Calvin Bolinski 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).

  • Wheeled device to assist in carrying ladders
    Patent number: 8556277
    Abstract: A wheeled dolly for a ladder that connects to two adjacent rungs by means of hooks in the front that hook over one rung and a pincer action in the back actuated by the angle of the wheel assembly and the downward pressure exerted on the dolly by the weight of the ladder. Once engaged the ladder may easily be pulled or pushed with most of the weight resting on the dolly.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: October 15, 2013
    Inventor: Eric Calvin Bolinski