Patents by Inventor Theresa Collignon

Theresa Collignon 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).

  • Cover for artist's pastel
    Patent number: 5112151
    Abstract: An artist's crayon or chalk is provided with a cover which is made of a sheet of axially oriented polymer, the sheet having one side provided by a plurality of arcuate regions separated by cusps, the regions forming tear tabs. By gripping a tear tab and tearing, the axially oriented polymer will tear in a substantially straight line thus enabling the required amount of cover to be removed from the pastel. The cover may initially be provided in a self-adhesive form adhered to a peel-off backing sheet.
    Type: Grant
    Filed: February 12, 1990
    Date of Patent: May 12, 1992
    Assignee: Ofrex Group Holdings, PLC
    Inventor: Theresa Collignon