Patents by Inventor Thelma E. Smith

Thelma E. Smith 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).

  • Landscape edging system
    Patent number: 5720128
    Abstract: An edging system for separating grass of a lawn from landscaping features thereof. The inventive device includes a plurality of linear members and a plurality of corner members which can be interconnected into a desired orientation. The members each include a vertical plate positionable into the lawn, and a horizontal plate projecting from an interior of the vertical plate which limits insertion of the vertical plate and maintains the same in a vertical orientation.
    Type: Grant
    Filed: June 19, 1995
    Date of Patent: February 24, 1998
    Inventors: David A. Smith, Thelma E. Smith