Patents Assigned to C.I.E.F. -Compagnia Immobiliare e Finanziaria S.p.A.
  • Ceramic tile with its rear configured as uniformly distributed projections
    Patent number: 4446190
    Abstract: A ceramic tile has its rear uniformly configured as small frusto-conical or frusto-pyramidal tapered projections 2 of constant height, thus eliminating internal stresses during firing, eliminating zones of different color tone on the front face, and improving the gripping coefficient when laying.A portion of the projections 2, in groups of at least two, are taller to form feet 3 for resting during stacking.
    Type: Grant
    Filed: March 1, 1983
    Date of Patent: May 1, 1984
    Assignee: C.I.E.F. -Compagnia Immobiliare e Finanziaria S.p.A.
    Inventor: Ermanno Pernici