Patent US2642280A successfully refreshed from Google Patents.
US2642280A
Expired / Lapsed
US
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Apparatus for cold reducing metal bars
Assignee: Individual
•
Filing: 1945-10-25
•
Granted: 1953-06-16
•
Expires: 1965-10-25
Abstract
No abstract record available.
Inventors
- 👤 Gustaf L Fisk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:03
CPC Classifications
B; B21; B21B; B21B39/00; B21B39/006; B21C; B21C1/00; B21C1/16; B21C1/27; B21C1/30; Y; Y10; Y10T; Y10T156/00; Y10T156/17; Y10T156/1702; Y10T156/1712; Y10T156/1741
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) | 1956-06-15 | 1956-12-15 | 1957-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-15 | 1960-12-15 | 1961-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-15 | 1964-12-15 | 1965-06-16 | $7700.00 | Window Closed / Lapsed |