US2817940A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-centering roll
Assignee: United States Steel Corp
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Filing: 1955-10-18
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Granted: 1957-12-31
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Expires: 1975-10-18
Abstract
No abstract record available.
Inventors
- 👤 Edwin T Lorig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:25
CPC Classifications
F; F16; F16H; F16H7/00; F16H7/18; B; B65; B65G; B65G39/00; B65G39/02; B65G39/07; B65G39/071; B65H; B65H23/00; B65H23/02; B65H27/00; B65H2404/00; B65H2404/10; B65H2404/13; B65H2404/132; B65H2404/1321; B65H2404/16; B65H2404/164; B65H2404/17
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) | 1960-12-30 | 1961-07-01 | 1961-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-30 | 1965-07-01 | 1965-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-30 | 1969-07-01 | 1969-12-31 | $7700.00 | Window Closed / Lapsed |