Patents by Inventor Robert L. Lancaster

Robert L. Lancaster 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).

  • Protective laminate
    Patent number: 4678702
    Abstract: A rigid protective laminate is formed of at least nine layers of Kevlar fabric bonded together by internal layers of Surlyn which has been subjected to sufficient heat and pressure to cause the Surlyn to flow into and encapsulate the yarn of the Kevlar fabric. External Surlyn layers on the sides and edges protect the outermost fabric layers from moisture and provide a smooth outer surface.
    Type: Grant
    Filed: July 30, 1986
    Date of Patent: July 7, 1987
    Assignee: Petro Products, Inc.
    Inventors: Robert L. Lancaster, Raymond E. Shaw