US2916387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass colorant composition
Assignee: Foote Mineral Co
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Filing: 1958-03-07
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Granted: 1959-12-08
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Expires: 1978-03-07
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles H Commons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:56
CPC Classifications
C; C03; C03C; C03C1/00; C03C1/10; C03C3/00; C03C3/12; C03C3/16; C03C3/17
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
AS A NEW COMPOSITION OF MATTER, A DEEPLY COLORED COLOR CONCENTRATE COMPOSITIONS, IN THE FORM OF A FRIT, HAVING AN OXIDE ANALYSIS AS FOLLOWS: ABOUT 45-75% P2O5; ABOUT 1-15% OF A WATER-INSOLUBILIZING CONSTITUENT SELECTED FROM THE CLASS CONSISTING OF ALUMINUM OXIDE, BERYLLIUM OXIDE, AND COMBINATIONS OF ALUMINUM OXIDE AND OF BERYLLIUM OXIDE WIWTH AN ALKALINE EARTH METAL OXIDE SELECTED FROM THE GROUP CONSISTING OF THE OXIDES OF CALCIUM, BARIUM, STRONTIUM AND MAGNESIUM; ABOUT 5-15% OF AN ALKALI METAL OXIDE SELECTED FROM THE CLASS CONSISTING OF THE OXIDES OF SODIUM, POTASSIUM AND LITHIUM; AND ABOUT 5-25% OF COLOR METAL OXIDES COMPRISING AT LEAST ABOUT 5% CHROMIA, THE SELECTED PERCENTAGES OF SAID OXIDES TOGETHER TOTALLING SUBSTANTIALLY 100%.
Claim 2
Dependent Claim
115 words
AS A NEW COMPOSITION OF MATTER, A DEEPLY COLORED COLOR CONCENTRATE COMPOSITIONS, IN THE FORM OF A FRIT, HAVING AN OXIDE ANALYSIS AS FOLLOWS: ABOUT 45-75% P2O5; ABOUT 1-15% OF A WATER-INSOLUBILIZING CONSTITUENT SELECTED FROM THE CLASS CONSISTING OF ALUMINUM OXIDE, BERYLLIUM OXIDE, AND COMBINATIONS OF ALUMINUM OXIDE AND OF BERYLLIUM OXIDE WIWTH AN ALKALINE EARTH METAL OXIDE SELECTED FROM THE GROUP CONSISTING OF THE OXIDES OF CALCIUM, BARIUM, STRONTIUM AND MAGNESIUM; ABOUT 5-15% OF AN ALKALI METAL OXIDE SELECTED FROM THE CLASS CONSISTING OF THE OXIDES OF SODIUM, POTASSIUM AND LITHIUM; AND ABOUT 5-25% OF COLOR METAL OXIDES COMPRISING AT LEAST ABOUT 5% CHROMIA, THE SELECTED PERCENTAGES OF SAID OXIDES TOGETHER TOTALLING SUBSTANTIALLY 100%.
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) | 1962-12-07 | 1963-06-08 | 1963-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-07 | 1967-06-08 | 1967-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-07 | 1971-06-08 | 1971-12-08 | $7700.00 | Window Closed / Lapsed |