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US2431879A
Expired / Lapsed
US
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Apparatus for casting steel rolls
Assignee: Carnegie Illinois Steel Corp
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Filing: 1945-05-22
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Granted: 1947-12-02
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Expires: 1965-05-22
Abstract
No abstract record available.
Inventors
- 👤 Erwin H Mebs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:51
CPC Classifications
B; B22; B22D; B22D15/00; B22D15/005
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) | 1950-12-01 | 1951-06-02 | 1951-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-01 | 1955-06-02 | 1955-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-01 | 1959-06-02 | 1959-12-02 | $7700.00 | Window Closed / Lapsed |