US2681192A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wing tip tank construction
Assignee: Republic Aviation Corp
•
Filing: 1950-04-07
•
Granted: 1954-06-15
•
Expires: 1970-04-07
Abstract
No abstract record available.
Inventors
- 👤 Costas E Pappas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:03
CPC Classifications
B; B64; B64D; B64D37/00; B64D37/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1749047A
Cited
US2273919A
Cited
FR872789A
Cited
US2326819A
Cited
US2417342A
Cited
GB606088A
Cited
FR923549A
Cited
US2537369A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-06-14 | 1957-12-14 | 1958-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-14 | 1961-12-14 | 1962-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-14 | 1965-12-14 | 1966-06-15 | $7700.00 | Window Closed / Lapsed |