Patents by Inventor Graham Frampton Devenish

Graham Frampton Devenish 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).

  • Resilient structures
    Patent number: 4005943
    Abstract: A resilient open-comparted three-dimensional structure suitable for use as a ground surface covering comprising an interlocked assembly of two pluralities of strips respectively formed at intervals with apertures and profiled regions which co-operate to interlock together the two pluralities of strips, a slit, slot, groove or the like extending into each aperture to facilitate interlocking of the two pluralities of strips. Two or more such structures may be superimposed on one another and a layer of resilient material may be provided between superimposed structures.
    Type: Grant
    Filed: December 2, 1974
    Date of Patent: February 1, 1977
    Assignee: Dunlop Limited
    Inventors: Graham Frampton Devenish, Peter Christopher Dickson