Patents by Inventor Mark Edward Curtiss

Mark Edward Curtiss 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).

  • Patent number: 7653957
    Abstract: A utility ramp for loading and unloading lawn mowers and other equipment into a pickup truck or transport vehicle and then collapsed for easy storage. The ramp is a comprehensive unit comprising two ramp channels held parallel by a sliding cross brace design. The first end of the cross brace is pivotally attached the ramp channel. The second end of the cross brace is secured to a rotating sliding fitting that engages a slot in the ramp channel. The sliding cross brace design constrains the ramp sections in a secure and parallel fashion in both the expanded and collapsed positions. This design allows one person to easily and quickly expand or collapse the utility ramp with one simple motion.
    Type: Grant
    Filed: May 7, 2008
    Date of Patent: February 2, 2010
    Inventor: Mark Edward Curtiss