Patents Assigned to Cento Group S.p.A.
  • Process for manufacture of jewelry and jewelry made thereby
    Patent number: 6274250
    Abstract: Ornamental jewelry is made from a composite wire for manufacturing semifinished products to be subjected to an emptying process. The wire comprises a support core (1) of a nonprecious metal that is removable by chemical or electrochemical means as well as a plurality of sections (3,4,5) of precious metal wherein at least a portion of each of said sections is radially engaged in the core.
    Type: Grant
    Filed: June 28, 2000
    Date of Patent: August 14, 2001
    Assignee: Cento Group S.p.A.
    Inventor: Urbano Terziani
  • Composite wire for the manufacture of jewelry articles
    Patent number: 6146772
    Abstract: A composite wire for the manufacture of semifinished products to be subjected to an emptying process in the field of goldsmithery. The wire comprises a support core developing essentially along one of its longitudinal axes in a nonprecious metal that is removable by chemical or electrochemical means as well as a plurality of sections in precious metal having an essentially longitudinal development of which at least a portion of each one is radially engaged in the core.
    Type: Grant
    Filed: May 28, 1998
    Date of Patent: November 14, 2000
    Assignee: Cento Group S.p.A.
    Inventor: Urbano Terziani
  • Jewelry chain
    Patent number: D326065
    Type: Grant
    Filed: May 15, 1990
    Date of Patent: May 12, 1992
    Assignee: Cento Group S.p.A.
    Inventor: Caterina Borgogni