Patent · US Expired

Gemstone

US6794014B2 · kind B2 · utility

2Cited by

4References

15Claims

0Family size

Assignee

Winter CVD Tecknik GmbH · DE

Inventors

Ernst Winter · Hamburg, DE
Lothar Schäfer · Meine, DE
Thorsten Matthee · Hohenaspe, DE

Key dates

Filing date	Jul 29, 1999
Grant date	Sep 21, 2004
Priority date	—
Expiry date	Jul 29, 2019

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/24612
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

A gemstone is provided and has a large surface-area, plate-shaped support having a surface with least one pyramid-shaped depression. A thin vapor phase deposit layer comprises a thin, surface-shaped precious synthetic gemstone layer disposed on the large surface-area, plate-shaped support and has an upper surface facing away from the plate-shaped support and an underside having at least one pyramid-shaped projection disposed in and coinciding with the pyramid-shaped depression of the support. Side faces of the pyramid-shaped projections of the underside of the vapor phase deposit layer upon the plate-shaped support impart decorative, diamond-light-reflective qualities to the synthetic gemstone layer.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.