Patent US1880479A successfully refreshed from Google Patents.
US1880479A
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Airplane truss joint construction
Assignee: ThyssenKrupp Budd Co
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Filing: 1929-07-16
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Granted: 1932-10-04
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Expires: 1949-07-16
Abstract
No abstract record available.
Inventors
- 👤 Earl J W Ragsdale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:56
CPC Classifications
B; B64; B64C; B64C3/00; B64C3/18; B64C3/187; B21; B21D; B21D39/00; B21D39/03; F; F16; F16B; F16B7/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1935-10-04 | 1936-04-04 | 1936-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-10-04 | 1940-04-04 | 1940-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-10-04 | 1944-04-04 | 1944-10-04 | $7700.00 | Window Closed / Lapsed |