US3567667A
Expired / Lapsed
US
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Mould linings composition comprising ball mill dust and calcium silicate,aluminum silicate or calcium alumino silicate fibrous refractory material
Assignee: Foseco International Ltd
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Filing: 1968-02-23
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Granted: 1971-03-02
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Expires: 1988-02-23
Abstract
Abstract HOT TOPPING MOULD LINING MATERIALS WHICH CONTAIN A MAJOR PROPORTION OF BALL MILL DUST AND PROPORTIONS OF REFRACTORY FIBROUS MATERIALS SELECTED FROM CALCIUM SILICATE, ALUMINIUM SILICATE AND CALCIUM ALUMINOSILICATE HAVING ADVANTAGEOUS PROPERTIES COMPARED WITH PRIOR ART SIMILAR MATERIALS CONTAINING ASBESTOS.
Inventors
- 👤 Bernard Carl Rumbold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:46
CPC Classifications
B; B22; B22C; B22C3/00
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) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |