US2498622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refractory composition
Assignee: Corning Glass Works
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Filing: 1947-11-06
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Granted: 1950-02-21
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Expires: 1967-11-06
Abstract
No abstract record available.
Inventors
- 👤 John M Mochel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:23
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/01; C04B35/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
A REFRACTORY COMPOSITION WHICH, EXCLUSIVE OF IMPURITIES, CONSISTS OF CR2O3, TIO2 AND ANA ALKALINE EARTH METAL OXIDE (RO) SELECTED FROM THE CLASS CONSISTED OF MGO, CAO, SRO, AND BAO, THE CR2O3 BEING AT LEAST 80%, THE TIO2 BEING FROM ABOUT 1% TO ABOUT 15% AND THE RATIO TIO2/RO BEING FROM ABOUT .5/1 TO ABOUT 5/1. METAL ION OF AT LEAST ONE ELEMENT SELECTED FROM THE GROUP CONSISTING OF CALCIUM, ZINC, COBALT, MAGNESIUM, CADMIUM, IRON, ALUMINUM, BARIUM, STRONTIUM, MANGANESE, CHROMIUM, AND NICKEL, AT LEAST 200 P. P. M. BY WEIGHT OF A WATER-SOLUBLE ALKALI-METAL PHSPHATE GLASS AND AT LEAST 10 P. P. M. OF AN OXIDIZING AGENT SELECTED FROM THE GROUP CONSISTING OF WATER-SOLUBLE INORGANIC NITRATES, NITRITES, SULFITES, PERMANGANATES, CHROMATES, FERRICYANIDES, DICHROMATES, AND PERBORATES, AND MAINTAINING THE RATIO OF THE PHOSPHATE GLASS CONCENTRATION IN SAID SOLUTION TO THE CONCENTRATION OF THE METAL ION THEREIN BETWEEN THE VALUES OF ABOUT 0.05:1 AND ABOUT 12:1.
Claim 2
Dependent Claim
152 words
A REFRACTORY COMPOSITION WHICH, EXCLUSIVE OF IMPURITIES, CONSISTS OF CR2O3, TIO2 AND ANA ALKALINE EARTH METAL OXIDE (RO) SELECTED FROM THE CLASS CONSISTED OF MGO, CAO, SRO, AND BAO, THE CR2O3 BEING AT LEAST 80%, THE TIO2 BEING FROM ABOUT 1% TO ABOUT 15% AND THE RATIO TIO2/RO BEING FROM ABOUT .5/1 TO ABOUT 5/1. METAL ION OF AT LEAST ONE ELEMENT SELECTED FROM THE GROUP CONSISTING OF CALCIUM, ZINC, COBALT, MAGNESIUM, CADMIUM, IRON, ALUMINUM, BARIUM, STRONTIUM, MANGANESE, CHROMIUM, AND NICKEL, AT LEAST 200 P. P. M. BY WEIGHT OF A WATER-SOLUBLE ALKALI-METAL PHSPHATE GLASS AND AT LEAST 10 P. P. M. OF AN OXIDIZING AGENT SELECTED FROM THE GROUP CONSISTING OF WATER-SOLUBLE INORGANIC NITRATES, NITRITES, SULFITES, PERMANGANATES, CHROMATES, FERRICYANIDES, DICHROMATES, AND PERBORATES, AND MAINTAINING THE RATIO OF THE PHOSPHATE GLASS CONCENTRATION IN SAID SOLUTION TO THE CONCENTRATION OF THE METAL ION THEREIN BETWEEN THE VALUES OF ABOUT 0.05:1 AND ABOUT 12:1.
References Cited (Backward Citations)
US2271364A
Cited
US2271362A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-20 | 1953-08-22 | 1954-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-20 | 1957-08-22 | 1958-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-20 | 1961-08-22 | 1962-02-21 | $7700.00 | Window Closed / Lapsed |