Patents by Inventor Harry Shepherd Thomson

Harry Shepherd Thomson 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: 6041455
    Abstract: Apparatus for use in one mode as a cot or play yard and in another mode as a play mat includes a framework which may be used to erect and lower a flexible peripheral wall. A mattress is supported in the apparatus in either mode and is removed during the step of converting from one mode to the other and repositioned. In the play mat mode, the mattress rests on the collapsed framework.
    Type: Grant
    Filed: October 5, 1998
    Date of Patent: March 28, 2000
    Inventors: David Melvin Raffo, Harry Shepherd Thomson