Patent US3210204A successfully refreshed from Google Patents.
US3210204A
Expired / Lapsed
US
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Zirconium silicate opacified ceramic glaze compositions
Assignee: Primerica Inc
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Filing: 1962-12-18
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Granted: 1965-10-05
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Expires: 1982-12-18
Abstract
No abstract record available.
Inventors
- 👤 Thomas S Costain
- 👤 Elliott L Weinberg
- 👤 Arthur H Luley
- 👤 Ralph R Danielson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:57
CPC Classifications
C; C03; C03C; C03C4/00; C03C2204/00; C03C2204/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
A CERAMIC GLAZE COMPOSITION CHARACTERIZED BY ITS HIGH DEGREE OF OPACITY COMPRISING A BASE GLAZE, AND ZIRCONIUM SILICATE PARTICLES AT LEAST 98% OF WHICH PARTICLES ARE LESS THAN 1.0 MICRON IN DIAMETER.
Claim 2
Dependent Claim
32 words
A CERAMIC GLAZE COMPOSITION CHARACTERIZED BY ITS HIGH DEGREE OF OPACITY COMPRISING A BASE GLAZE, AND ZIRCONIUM SILICATE PARTICLES AT LEAST 98% OF WHICH PARTICLES ARE LESS THAN 1.0 MICRON IN DIAMETER.
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) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |