Patent US3038685A successfully refreshed from Google Patents.
US3038685A
Expired / Lapsed
US
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Landing gear for aircraft
Assignee: Boelkow Entwicklungen KG
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Filing: 1959-03-27
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Granted: 1962-06-12
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Expires: 1979-03-27
Abstract
No abstract record available.
Inventors
- 👤 Hofmann Ludwig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:42
CPC Classifications
B; B64; B64C; B64C25/00; B64C25/32; B64C25/34; B64C25/001; B64C2025/008; B64C2025/325
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2630989A
Cited
US2927747A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-11 | 1965-12-11 | 1966-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-11 | 1969-12-11 | 1970-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-11 | 1973-12-11 | 1974-06-12 | $7700.00 | Window Closed / Lapsed |