Glass frame
US6991125B2 · kind B2 · utility
0Cited by
12References
37Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 17, 2002 |
| Grant date | Jan 31, 2006 |
| Priority date | — |
| Expiry date | Oct 17, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B80/22
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A glass frame includes a cross-section that has a substantially polygonal profile with at least one re-entrant angle, and is intended to keep two plane substrates separate around their periphery. The frame may keep a space between two glass sheets, such as in the production of plane and hermetically sealed glass envelopes for use as field-emission screens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.