US3674518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refractory dressing method
Assignee: TOSECO INTERN Ltd
•
Filing: 1970-01-19
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Granted: 1972-07-04
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Expires: 1990-01-19
Abstract
Abstract THE BASE AND WALLS OF INGOT MOULDS MAY BE PROTECTED AGAINST MOLTEN METAL EROSION IN USE BY APPLYING A REFRACTORY DRESSING OF A MAGNESIUM ALUMINATE, E.G. A CRUSHED ALUMINOUS SLAG, TOGETHER WITH AN INORGANIC BINDING AGENT THEREFOR, IN A LIQUID MEDIUM.
Inventors
- 👤 Jean-Claude Vuaroqueaux
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:49
CPC Classifications
B; B22; B22C; B22C3/00; B22C23/00; B22C23/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-04 | 1984-01-03 | 1984-07-04 | $7700.00 | Window Closed / Lapsed |