Patent US3490256A successfully refreshed from Google Patents.
US3490256A
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US
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Control for obtaining constant gauge in a rolling mill
Assignee: United Engineering and Foundry Co
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Filing: 1967-01-24
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Granted: 1970-01-20
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Expires: 1987-01-24
Abstract
No abstract record available.
Inventors
- 👤 Jeremiah Wagner O'brien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:01
CPC Classifications
B; B21; B21B; B21B37/00; B21B37/58; B21B37/64; A; A61; A61J; A61J7/00; A61J7/04; A61J7/0409; A61J7/0427; A61J7/0445
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) | 1973-01-19 | 1973-07-21 | 1974-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-19 | 1977-07-21 | 1978-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-19 | 1981-07-21 | 1982-01-20 | $7700.00 | Window Closed / Lapsed |