US2933956A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic screwdown-control system for rod mill
Assignee: United States Steel Corp
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Filing: 1958-01-30
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Granted: 1960-04-26
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Expires: 1978-01-30
Abstract
No abstract record available.
Inventors
- 👤 Richard R Snow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:32
CPC Classifications
B; B21; B21B; B21B38/00; B21B37/00; B21B37/58; B21B37/60; B21B1/00; B21B1/16; B21B1/20; B21B13/00; B21B2013/006
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) | 1963-04-26 | 1963-10-26 | 1964-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-26 | 1967-10-26 | 1968-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-26 | 1971-10-26 | 1972-04-26 | $7700.00 | Window Closed / Lapsed |