Patents by Inventor Patrick Terence Bourke

Patrick Terence Bourke 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).

  • Method of making a composite surface elements of stone and lightweight sheet material
    Patent number: 4063982
    Abstract: The invention relates to a method of manufacturing surface elements such as tiles or panels consisting of a thin lamina of natural stone bonded to a backing consisting of a multicellular paper core material of substantially greater thickness than the lamina which at least on the side remote from the stone lamina has a skin of tenacious sheet material bonded thereto. The method comprises bonding the backing to a stone slab and thereafter severing from the slab a thin lamina of stone with the backing attached.
    Type: Grant
    Filed: May 12, 1976
    Date of Patent: December 20, 1977
    Inventor: Patrick Terence Bourke