Expandable chain construction

  • US 6,250,107 B1
  • Filed: 04/29/1999
  • Issued: 06/26/2001
  • Est. Priority Date: 04/29/1999
  • Status: Expired due to Fees
First Claim
Patent Images

1. An expandable jewelry chain construction, comprising:

  • a first chain length comprising at least one non-extensible monofilament element formed into a series of first-handed open loops joined by intermediate line portions; and

    a second chain length comprising at least one non-extensible monofilament element formed into a series of second, opposite-handed open loops joined by intermediate line portions;

    the loops of said first chain length encircling consecutive intermediate line portions of said second chain length and the loops of said second chain length encircling consecutive intermediate line portions of said first chain length.

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