US3050798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for continuous casting and vacuum degasification
Assignee: Strategic Materials Corp
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Filing: 1960-06-13
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Granted: 1962-08-28
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Expires: 1980-06-13
Abstract
No abstract record available.
Inventors
- 👤 Frank W Chambers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:40
CPC Classifications
C; C21; C21C; C21C7/00; C21C7/10; B; B22; B22D; B22D11/00; B22D11/10; B22D11/11; B22D11/113
Claims Analysis
Total Claims: 0
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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) | 1965-08-27 | 1966-02-26 | 1966-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-27 | 1970-02-26 | 1970-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-27 | 1974-02-26 | 1974-08-28 | $7700.00 | Window Closed / Lapsed |