Patent US2890037A successfully refreshed from Google Patents.
US2890037A
Expired / Lapsed
US
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Method and apparatus for continuously cooling metal strips
Assignee: United States Steel Corp
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Filing: 1954-11-10
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Granted: 1959-06-09
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Expires: 1974-11-10
Abstract
No abstract record available.
Inventors
- 👤 George H Rendel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:47
CPC Classifications
C; C21; C21D; C21D1/00; C21D1/84; C21D9/00; C21D9/52; C21D9/54; C21D9/56; C21D9/573; C21D9/5735; C21D9/5737
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
US2661669A
Cited
US2693353A
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US2797899A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-06-08 | 1962-12-08 | 1963-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-08 | 1966-12-08 | 1967-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-08 | 1970-12-08 | 1971-06-09 | $7700.00 | Window Closed / Lapsed |