US3512573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of continuously casting metal using carbon dioxide for cooling
Assignee: United States Steel Corp
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Filing: 1967-12-21
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Granted: 1970-05-19
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Expires: 1987-12-21
Abstract
No abstract record available.
Inventors
- 👤 Louis M Herff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:29
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/04; B22D11/049; B22D11/10; B22D11/11; B22D11/112; B22D11/12; B22D11/124
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA526061A
Cited
US2791812A
Cited
US3099053A
Cited
US3293707A
Cited
US3353584A
Cited
US3353585A
Cited
US3344840A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-18 | 1973-11-17 | 1974-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-18 | 1977-11-17 | 1978-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-18 | 1981-11-17 | 1982-05-19 | $7700.00 | Window Closed / Lapsed |