Patent EP0568373A2 successfully refreshed from Google Patents.
US2769477A
Expired / Lapsed
US
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Bending apparatus
Assignee: Solar Aircraft Co
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Filing: 1952-04-17
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Granted: 1956-11-06
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Expires: 1972-04-17
Abstract
No abstract record available.
Inventors
- 👤 Kenneth R Neer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:14
CPC Classifications
B; B21; B21D; B21D5/00; B21D5/14; B21D5/146
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US590857A
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US2454282A
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US711180A
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US1017815A
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US1126982A
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US2196076A
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US2609191A
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US2609192A
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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) | 1959-11-06 | 1960-05-07 | 1960-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-06 | 1964-05-07 | 1964-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-06 | 1968-05-07 | 1968-11-06 | $7700.00 | Window Closed / Lapsed |