Patents by Inventor Catherine L. Simpson

Catherine L. Simpson 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: 4150763
    Abstract: A paint brush scraper adapted for use with conventional paint cans comprises a conical surface cut away to form a pie-shaped cut bounded by two radial edges. The peripheral edge of the cone and the exterior portions of the radial edges are provided with a peripheral lip extending on the dished side, the exterior surface of the cone being further provided with a plurality of circular ribs concentric about the apex. These ribs, once more, extend between the radial cutoffs and are dimensioned for insertion into the lid groove of standard size paint cans. By virtue of this arrangement a sharp set of radial edges is provided proximate the apex against which a brush can be wiped, the brush residue draining down towards the apex of the cone and into the paint can.
    Type: Grant
    Filed: April 3, 1978
    Date of Patent: April 24, 1979
    Inventor: Catherine L. Simpson