Patent US2517931A successfully refreshed from Google Patents.
US2517931A
Expired / Lapsed
US
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Apparatus for the continuous casting of metal
Assignee: Individual
•
Filing: 1947-05-15
•
Granted: 1950-08-08
•
Expires: 1967-05-15
Abstract
No abstract record available.
Inventors
- 👤 Rossi Irving
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:24
CPC Classifications
B; B22; B22D; B22D41/00; B22D41/50; B22D41/60; B22D11/00; B22D11/10; B22D11/11; B22D11/112
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1996335A
Cited
US2154234A
Cited
US2224303A
Cited
US2290083A
Cited
US2357780A
Cited
US2380109A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-07 | 1954-02-06 | 1954-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-07 | 1958-02-06 | 1958-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-07 | 1962-02-06 | 1962-08-08 | $7700.00 | Window Closed / Lapsed |