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Patent US3496990A successfully refreshed from Google Patents.
US3496990A
Expired / Lapsed
US
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Apparatus for continuous casting of metal
Assignee: SMS Concast AG
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Filing: 1967-11-16
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Granted: 1970-02-24
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Expires: 1987-11-16
Abstract
No abstract record available.
Inventors
- 👤 Walter Meier
- 👤 Armin Thalmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:42
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/12; B22D11/128; B22D11/1282
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2284503A
Cited
FR1060910A
Cited
US2770021A
Cited
US2895190A
Cited
GB830852A
Cited
GB874036A
Cited
US3015862A
Cited
US3263284A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-23 | 1973-08-25 | 1974-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-23 | 1977-08-25 | 1978-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-23 | 1981-08-25 | 1982-02-24 | $7700.00 | Window Closed / Lapsed |