Patents by Inventor Ronald I. Robertson

Ronald I. Robertson 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).

  • Publication number: 20040223836
    Abstract: A vehicle ramp assembly for loading ATVs and like things onto transporting vehicles. The ramp assembly includes a pair of ramps positioned side-by-side. Each of the ramps has an upper end for engagement with a transporting vehicle and a lower end for positioning upon the ground. At least one crosspiece connects the ramps together between the upper and lower ends thereof. The crosspiece is releasably fastened to one of the ramps and is pivotally fastened to the other one of the ramps for compact storage.
    Type: Application
    Filed: May 6, 2003
    Publication date: November 11, 2004
    Inventor: Ronald I. Robertson
  • Patent number: 6250699
    Abstract: A game dragging device including a tether having an upper end bifurcated into two branches. Each of a pair of handles is respectively secured to one of the branches. A first fastener is secured to one of the branches and a second fastener is secured to the other of the branches. The second fastener is adapted to mate with, and releasably adhere to, the first fastener so that the handles can be selectively secured together in a side-by-side manner. A hook is secured to the lower end of the tether.
    Type: Grant
    Filed: May 23, 2000
    Date of Patent: June 26, 2001
    Inventor: Ronald I. Robertson
  • Patent number: D505238
    Type: Grant
    Filed: May 6, 2003
    Date of Patent: May 17, 2005
    Inventor: Ronald I. Robertson