US2431345A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aircraft fuel system
Assignee: Individual
•
Filing: 1945-01-01
•
Granted: 1947-11-25
•
Expires: 1965-01-01
Abstract
No abstract record available.
Inventors
- 👤 Samiran David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:12
CPC Classifications
F; F04; F04C; F04C14/00; F04C14/24; F04C14/26; B; B64; B64D; B64D37/00; B64D37/005; F02; F02M; F02M41/00; F02M41/08; F04C11/00; F02M2700/00; F02M2700/13; F02M2700/1317; F02M2700/1329; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7771; Y10T137/7772; Y10T137/7777; Y10T137/7837; Y10T137/7904; Y10T137/7905
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-11-24 | 1951-05-26 | 1951-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-11-24 | 1955-05-26 | 1955-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-11-24 | 1959-05-26 | 1959-11-25 | $7700.00 | Window Closed / Lapsed |