Patents by Inventor Gordon Douglas Folster Johnstone

Gordon Douglas Folster Johnstone 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: 5837341
    Abstract: Process for producing a composite tamper resistant product. A laminated printing sheet includes a sheet of fusible synthetic paper having an outer surface and an inner surface, the inner surface of the fusible synthetic paper being removably adhered by a partially activated adhesive to one side of a polymeric sheet. A backing sheet is adhered to the opposite side of the polymeric sheet by an adhesive. The sheet of synthetic paper and the backing sheet are discreet sheets and made of different materials. The backing sheet prevents the laminated printing sheet from distorting under the influence of heat in a printer. The synthetic sheet of paper and the partially activated heat adhesive are peeled away from the polymeric sheet so that the partially activated adhesive can adhere to a further surface, and so that the outer surface of the fusible synthetic paper can be fused to a transparent panel to prevent tampering with information applied to the outer surface of the synthetic paper.
    Type: Grant
    Filed: October 28, 1996
    Date of Patent: November 17, 1998
    Assignee: Sharon Jane Johnstone
    Inventor: Gordon Douglas Folster Johnstone