US3171753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Zirconium stain for ceramic glazes
Assignee: Associated Lead Manufacturers Ltd
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Filing: 1961-12-22
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Granted: 1965-03-02
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Expires: 1981-12-22
Abstract
No abstract record available.
Inventors
- 👤 Olby John Kenneth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:57
CPC Classifications
B; B28; B28B; B28B19/00; C; C09; C09C; C09C1/00; C09C1/0009; C09C1/0012; C01; C01P; C01P2004/00; C01P2004/80; C01P2006/00; C01P2006/60; C01P2006/80
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A ZIRCONIUM STAIN FOR USE IN THE PRODUCTION OF GLAZES FOR CERAMICS WHICH CONSISTS OF A CALCINED MIXTURE OF ZIRCONIA, SILICA, SODIUM FLUORIDE, AND A FLUORIDE OF AN ELEMENT SELECTED FROM THE GROUP CONSISTING OF CHROMIUM, IRON, CERIUM, NEODYMIUM, TERBIUM AND ERBUIM, THE STAIN CONSISTING ESSENTIALLY OF ZIRCONIUM SILICATE WITH SAID ELEMENT PRESENT IN THE CRYSTAL LATTICE AND BEING MADE FROM A CALCINED MIX OF ZIRCONIA, 48.8-50% SILICA, 1.8-9% SODIUM FLUORIDE, AND 0.5-10% IN THE CASE OF CRF3, 1.015% IN THE CASE OF FEF3, 5-20% IN THE CASE OF CEF3, 5-20% IN THE CASE OF NDF3, 0.5-15% IN THE CASE OF TBF3, AND 5-20% IN THE CASE OF ERF3, ALL PERCENTAGES BEING PERCENTAGES BY WEIGHT OF ZIRCONIA.
Claim 2
Dependent Claim
117 words
A ZIRCONIUM STAIN FOR USE IN THE PRODUCTION OF GLAZES FOR CERAMICS WHICH CONSISTS OF A CALCINED MIXTURE OF ZIRCONIA, SILICA, SODIUM FLUORIDE, AND A FLUORIDE OF AN ELEMENT SELECTED FROM THE GROUP CONSISTING OF CHROMIUM, IRON, CERIUM, NEODYMIUM, TERBIUM AND ERBUIM, THE STAIN CONSISTING ESSENTIALLY OF ZIRCONIUM SILICATE WITH SAID ELEMENT PRESENT IN THE CRYSTAL LATTICE AND BEING MADE FROM A CALCINED MIX OF ZIRCONIA, 48.8-50% SILICA, 1.8-9% SODIUM FLUORIDE, AND 0.5-10% IN THE CASE OF CRF3, 1.015% IN THE CASE OF FEF3, 5-20% IN THE CASE OF CEF3, 5-20% IN THE CASE OF NDF3, 0.5-15% IN THE CASE OF TBF3, AND 5-20% IN THE CASE OF ERF3, ALL PERCENTAGES BEING PERCENTAGES BY WEIGHT OF ZIRCONIA.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-01 | 1968-08-31 | 1969-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-01 | 1972-08-31 | 1973-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-01 | 1976-08-31 | 1977-03-02 | $7700.00 | Window Closed / Lapsed |