US2950097A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbon-faced conveyor roll for silicon steel strip
Assignee: United States Steel Corp
•
Filing: 1958-10-21
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Granted: 1960-08-23
•
Expires: 1978-10-21
Abstract
No abstract record available.
Inventors
- 👤 Anthony M Tohir
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:43
CPC Classifications
C; C21; C21D; C21D9/00; C21D9/52; C21D9/54; C21D9/56; C21D9/562; C21D9/563; F; F27; F27D; F27D3/00; F27D3/02; F27D3/026
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1861489A
Cited
US2603578A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-23 | 1964-02-22 | 1964-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-23 | 1968-02-22 | 1968-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-23 | 1972-02-22 | 1972-08-23 | $7700.00 | Window Closed / Lapsed |