Patent US2742949A successfully refreshed from Google Patents.
US2742949A
Expired / Lapsed
US
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Leveler apparatus and method
Assignee: Individual
•
Filing: 1951-06-05
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Granted: 1956-04-24
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Expires: 1971-06-05
Abstract
No abstract record available.
Inventors
- 👤 Einar W Nilsson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:13
CPC Classifications
B; B21; B21B; B21B1/00; B21B1/22; B21B1/222; B21D; B21D1/00; B21D1/05
Claims Analysis
Total Claims: 0
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US2163504A
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US2343899A
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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) | 1959-04-24 | 1959-10-24 | 1960-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-24 | 1963-10-24 | 1964-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-24 | 1967-10-24 | 1968-04-24 | $7700.00 | Window Closed / Lapsed |