Princess cut diamond
US6745596B2 · kind B2 · utility
24Cited by
19References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 31, 2002 |
| Grant date | Jun 8, 2004 |
| Priority date | — |
| Expiry date | May 31, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA44C17/001
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A princess cut gemstone having a pavilion, a girdle, and a crown. In the presently preferred embodiment, the princess cut gemstone is a diamond with 101 facets: a pavilion of 64 facets, a girdle of 4 facets, and a crown with 33 facets (including the table).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.