Patents by Inventor Patricia A. Perkins

Patricia A. Perkins 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).

  • Back rest
    Patent number: 4572578
    Abstract: Back rest having a semi-rigid frame having the shape, in longitudinal section, of a shallow S formed by an upper concave portion and a lower convex portion, a cervical support affixed to and projecting from the upper end of the frame, a thoracic support extending downwardly from the cervical support along the median line of the frame, a lumbo-sacral support extending downwardly from the thoracic support, said thoracic and lumbo-sacral supports being formed with a groove to receive bony spinal prominences, and a kidney support on each side of that frame, said supports being of foam material.
    Type: Grant
    Filed: August 8, 1984
    Date of Patent: February 25, 1986
    Inventor: Patricia A. Perkins
  • Monument tablet
    Patent number: D350001
    Type: Grant
    Filed: December 22, 1992
    Date of Patent: August 23, 1994
    Assignee: Rayann Enterprises, Inc.
    Inventors: Patricia A. Perkins, Terry R. Perkins