Patents by Inventor Margaret M. Stinson

Margaret M. Stinson 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).

  • Key ring spreader
    Publication number: 20090090151
    Abstract: A thin flat piece with two holes placed at opposite ends used to house and remove keys, open packaging, remove hooks and lures and open can tab opener key ring spreader body (1) which has ring spreader apparatus (2).
    Type: Application
    Filed: February 15, 2008
    Publication date: April 9, 2009
    Inventor: Margaret M. Stinson