Patent US2938251A successfully refreshed from Google Patents.
US2938251A
Expired / Lapsed
US
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Metal distribution for continuous casting
Assignee: American Smelting and Refining Co
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Filing: 1957-07-31
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Granted: 1960-05-31
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Expires: 1977-07-31
Abstract
No abstract record available.
Inventors
- 👤 Richard Baier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:55
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/10; Y; Y10; Y10T; Y10T137/00; Y10T137/9464
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA518702A
Cited
US2058448A
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US2305477A
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US2127515A
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US2169893A
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US2301027A
Cited
US2754556A
Cited
US2744303A
Cited
US2772455A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-31 | 1963-11-30 | 1964-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-31 | 1967-11-30 | 1968-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-31 | 1971-11-30 | 1972-05-31 | $7700.00 | Window Closed / Lapsed |