Patents Assigned to Sandberg & Sikorski Diamond Corporation
  • Wrap ring assembly
    Patent number: 5419158
    Abstract: A wrap ring assembly comprising a pair of wrap rings for accommodating an engagement or other ring therebetween is provided. The wrap ring assembly includes a first ring having a first band and a second ring having a second band spaced from and substantially parallel to the first ring. The rings of the assembly are interconnected by a pivot assembly which enables the bands to revolve about a common axis that is tangent to the periphery of each of the bands.
    Type: Grant
    Filed: February 15, 1994
    Date of Patent: May 30, 1995
    Assignee: Sandberg & Sikorski Diamond Corporation
    Inventors: Sam Sandberg, Robert Hurwitz, Kla Paturmarj
  • Jewelry stone assembly
    Patent number: D452183
    Type: Grant
    Filed: May 30, 2001
    Date of Patent: December 18, 2001
    Assignee: Sandberg & Sikorski Diamond Corporation
    Inventor: Anthony Pinto
  • Ring
    Patent number: D459679
    Type: Grant
    Filed: March 29, 2001
    Date of Patent: July 2, 2002
    Assignee: Sandberg & Sikorski Diamond Corporation
    Inventor: Kla Patumraj
  • Pendant
    Patent number: D463311
    Type: Grant
    Filed: November 26, 2001
    Date of Patent: September 24, 2002
    Assignee: Sandberg & Sikorski Diamond Corporation
    Inventor: Youn Hee Shin
  • Pendant
    Patent number: D466753
    Type: Grant
    Filed: November 26, 2001
    Date of Patent: December 10, 2002
    Assignee: Sandberg & Sikorski Diamond Corporation
    Inventor: Youn Hee Shin
  • Pendant
    Patent number: D467196
    Type: Grant
    Filed: May 30, 2001
    Date of Patent: December 17, 2002
    Assignee: Sandberg & Sikorski Diamond Corporation
    Inventor: Anthony Pinto
  • Pendant
    Patent number: D467832
    Type: Grant
    Filed: May 30, 2001
    Date of Patent: December 31, 2002
    Assignee: Sandberg & Sikorski Diamond Corporation
    Inventor: Anthony Pinto
  • Pendant
    Patent number: D412460
    Type: Grant
    Filed: August 24, 1998
    Date of Patent: August 3, 1999
    Assignee: Sandberg & Sikorski Diamond Corporation
    Inventor: Norberto Bergagnini
  • Combined gem setting and gemstones
    Patent number: D412681
    Type: Grant
    Filed: June 2, 1998
    Date of Patent: August 10, 1999
    Assignee: Sandberg & Sikorski Diamond Corporation
    Inventor: Maria Canale
  • Combined gem setting and gemstones
    Patent number: D414442
    Type: Grant
    Filed: June 2, 1998
    Date of Patent: September 28, 1999
    Assignee: Sandberg & Sikorski Diamond Corporation
    Inventor: Maria Canale