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US2720692A
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Method of making a self-centering roll
Assignee: United States Steel Corp
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Filing: 1952-06-25
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Granted: 1955-10-18
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Expires: 1972-06-25
Abstract
No abstract record available.
Inventors
- 👤 Edwin T Lorig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:22
CPC Classifications
B; B65; B65H; B65H27/00; B65G; B65G39/00; B65G39/02; B65G39/07; B65G39/071; F; F16; F16H; F16H7/00; F16H7/18; B65H2404/00; B65H2404/10; B65H2404/13; B65H2404/132; B65H2404/1321; B65H2404/16; B65H2404/164; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49544; Y10T29/49547; Y10T29/49549; Y10T29/49554
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US822772A
Cited
US2592581A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-17 | 1959-04-18 | 1959-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-17 | 1963-04-18 | 1963-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-17 | 1967-04-18 | 1967-10-18 | $7700.00 | Window Closed / Lapsed |