US2658741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rolling mill for rolling strips or bands and sheets of steel and nonferrous metals
Assignee: WESTFALENHUTTE DORTMUND AG
•
Filing: 1949-06-13
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Granted: 1953-11-10
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Expires: 1969-06-13
Abstract
No abstract record available.
Inventors
- 👤 Schmidt Job
- 👤 Frielinghaus Ferdinand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:57
CPC Classifications
B; B21; B21B; B21B1/00; B21B1/22; B21B1/30; B21B1/32; B21B1/34; B21B1/24; B21B1/26; B21B15/00; B21B2015/0057
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1243442A
Cited
US1227163A
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US1302843A
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US1771688A
Cited
US1957009A
Cited
US1977214A
Cited
US2321146A
Cited
US2325559A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-09 | 1957-05-11 | 1957-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-09 | 1961-05-11 | 1961-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-09 | 1965-05-11 | 1965-11-10 | $7700.00 | Window Closed / Lapsed |