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US2683570A
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US
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Mill for the hot rolling of strip metal
Assignee: Individual
•
Filing: 1949-09-28
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Granted: 1954-07-13
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Expires: 1969-09-28
Abstract
No abstract record available.
Inventors
- 👤 John F Ferm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:14
CPC Classifications
B; B21; B21B; B21B1/00; B21B1/22; B21B1/24; B21B1/26; B21B1/30; B21B1/32; B21B1/34; B21C; B21C47/00; B21C47/02; B21C47/08; B21B13/00; B21B13/02; B21B2013/026; B21B15/00; B21B2015/0057
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-07-12 | 1958-01-11 | 1958-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-12 | 1962-01-11 | 1962-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-12 | 1966-01-11 | 1966-07-13 | $7700.00 | Window Closed / Lapsed |