US2770022A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of continuously casting molten metal
Assignee: Individual
•
Filing: 1952-12-08
•
Granted: 1956-11-13
•
Expires: 1972-12-08
Abstract
No abstract record available.
Inventors
- 👤 Joseph B Brennan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:14
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/06; B22D11/0611; B22D11/0622; B22D11/0634
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1657132A
Cited
GB504519A
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US2209968A
Cited
US2225424A
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US2567525A
Cited
US2473221A
Cited
US2496235A
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US2590311A
Cited
US2569150A
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US2565959A
Cited
US2698467A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-13 | 1960-05-14 | 1960-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-13 | 1964-05-14 | 1964-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-13 | 1968-05-14 | 1968-11-13 | $7700.00 | Window Closed / Lapsed |