Browning utensil for microwave ovens
US4977302A · kind A · utility
14Cited by
7References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 20, 1989 |
| Grant date | Dec 11, 1990 |
| Priority date | — |
| Expiry date | Dec 20, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S99/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A browning utensil for microwave ovens which includes a base member of glass, ceramic or glass-ceramic with a metal containing coating applied to a surface of the base member. Applied over the metal containing coating is a layer of metal-free glazing formed of a glass frit. The metal containing coating also includes a glazing material which preferably is composed of the same ingredients as the metal-free glazing. The glazing material also preferably has essentially the same coefficient of thermal expansion between 20.degree. and 300.degree. C. as the material forming the base member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.