Patent · US Active

Chaton cut for a gemstone made of topaz

US10085530B2 · kind B2 · utility

1Cited by

16References

36Claims

0Family size

Assignee

D. Swarovski KG · AT

Inventors

Guenther Blasbichler · Innsbruck, AT
Christian Loinger · Brixlegg, AT

Key dates

Filing date	Apr 1, 2015
Grant date	Oct 2, 2018
Priority date	—
Expiry date	Apr 1, 2035

Classification

Technology area (CPC A)Human Necessities
CPC primaryA44C17/001
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

A gemstone has a chaton cut, in which a crown adjoins a flat table and has facets that are inclined downwardly relative to the table all the way round, wherein the crown has main facets that extend substantially from the table as far as a girdle at which the gemstone has the largest transverse dimension. A pavilion of facets, preferably facets converging to a point, adjoins below the girdle. The gemstone consists preferably entirely of topaz, and the angle of the main facets relative to a cross-sectional face arranged parallel to the table is between 32.5° and 34.5°.

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