US2461805A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Airplane wing arrangement
Assignee: Individual
•
Filing: 1944-10-06
•
Granted: 1949-02-15
•
Expires: 1964-10-06
Abstract
No abstract record available.
Inventors
- 👤 Barker Parrish
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:31
CPC Classifications
B; B64; B64C; B64C39/00; B64C39/06; B64C39/068
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB191211921A
Cited
GB140080A
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US1613091A
Cited
US1747565A
Cited
US1895140A
Cited
US1939682A
Cited
FR42428E
Cited
GB450676A
Cited
US2110443A
Cited
US2353856A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-15 | 1952-08-16 | 1953-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-15 | 1956-08-16 | 1957-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-15 | 1960-08-16 | 1961-02-15 | $7700.00 | Window Closed / Lapsed |